David K. Joyce

Latest Additions

Below are the most recent additions to my specimens database. Click on any of the thumbnails to view a larger image of the specimen.

All prices in Canadian dollars. For payment in US$, deduct 18% or multiply by 0.82.

 

Item #29910 Magnetite 19.6x11.6x6.1 cm Largest Crystal Size: 14mm $160.00 Cerro Huanaquino Potosi Bolivia Perhaps the best magnetite specimen that I have ever had! The top of this piece is covered with razor-sharp, octahedral black crystals. Excellent!	Item #29908 Copper 15.3x9.5x3.2 cm Largest Crystal Size: 10mm $750.00 Keweenaw Peninsula Michigan, USA This is a solid piece of copper, totally consisting of copper crystals. It has excellent luster with the original patina. It is an oldy from one of the original fissure veins of the Keweenaw Peninsula. It is in the "Killer" category! Catalogue # indicates that it is from the Frederick Smith Collection. Smith was a prominent collector in the late 19th and early 20th centuries. A gorgeous, old time specimen.	Item #29906 Sphalerite 8.3x6.2x2.7 cm Largest Crystal Size: 10mm $85.00 Eagle Mine Gilman, Eagle Co. Colorado, USA A simple plate of lustrous, well formed, twinned, deep-brown sphalerite crystals on a quartz/pyrite matrix. Classic USA locality!	Item #29905 Chalcopyrite, Quartz 9.5x9.3x1.9 cm Largest Crystal Size: c-15mm $140.00 Boldut Mine Cavnic, Maramures Romania A gorgeous plate of, lustrous, gemmy quartz crystals studded with bright, deep-golden chalcopyrite crystals. The chalco's are twinned and really contrast beautifully with the quartz. Very showy as well as instructional!
Item #29904 Quartz 14.8x10.2x6.5 cm Largest Crystal Size: 40mm $75.00 KD Pocket Ouray Colorado, USA This specimen is a vertical plate of milky quartz crystals from the famous Ouray area. The crystals are very lustrous and no damage, at all. The specimen stands just like this for display. Beautiful!	Item #29903 Calcite, var. Cave Formation 15x9.5x9.5 cm Largest Crystal Size: n/a $75.00 SW Mine Bisbee, Cochise County Arizona, USA When they were mining at Bisbee, many years ago, they often encountered large caves in the underground workings. The caves were lined with stalactites, stalagmites and popcorn calcite formations such as this one. A very nice example from this old, long closed mine.	Item #29901 Silver, Nickeline, Breithauptite 16.7x10.2x2.8 cm Largest Crystal Size: n/a $85.00 Lawson Mine Cobalt Ontario, Canada This specimen is sawn on one side to reveal very rich native silver in nickeline and breithauptite mineralization. The silver is very coarse and cuts through most of the specimen and holds the cracked piece together tightly! The metallic minerals are mostly nickeline with significant breithauptite and some other arsenides, as well. The back of the specimen is the vein-wall contact. Rich and interesting!	Item #29900 Hematite 13.8x3.5x3.7 cm Largest Crystal Size: as above $150.00 Montreal Mine Montreal, Iron County Wisconsin, USA A classic example of "needle ore" from a classic American locality! This specimen is an elongated, curved almost fibrous growth of hematite. It is, in fact, a partial section through botryoidal hematite formation: a large one! Very good example. Accompanied by old Arkenstone label.
Item #29898 Breithauptite, Nickeline 6.0x4.5x2.9 cm Largest Crystal Size: n/a $65.00 Cobalt Ontario, Canada A fragment of high nickel-content mineralization from Cobalt showing dendritic breithauptite encased in nickeline. It is easy to see the difference between the two in this piece because of the pink metallic colour of the breithauptite. It is rough on all sides but the one polished side. Excellent!	Item #29897 Hematite 16.0x6.7x3.8 cm Largest Crystal Size: as above $160.00 Hodbarrow Mine Millom, Cumbria England A superb example of "needle ore" from this old iron mining area. The piece is a tapered fragment of a very large mammilary growth of hematite. On the largest end you can see the botryoidal structure. Excellent example!	Item #29896 Bournonite, Sphalerite, Quartz, Pyrite 22.5x15.0x5,.5 cm Largest Crystal Size: 10mm $100.00 Julcani Mine Julcani, Huancavelica Peru This is a rather large plate of quartz crystals with sphalerite, chalcopyrite and pyrite crystals popping up between the quartz crystals all over. The last sulphosalt to form is bournonite and it is present as well formed cogwheel twins wherever the sulphides are. Extra postage! Excellent!	Item #29895 Bournonite, Quartz 10.8x8.5x5.7 cm Largest Crystal Size: 16mm $100.00 Julcani Mine Julcani, Huancavelica Peru This piece is largely covered with quartz crystals of two generations. The larger crystals are the first generation, then well formed bournonite crystals formed on the quartz, followed by a fine drusy quartz which drapes over some of the bournonite crystals. Nice cogwheel-twinned bournonite crystals!
Item #29894 Sphalerite, Quartz, Pyrite 14.1x9.0x8.0 cm Largest Crystal Size: sph-25, qu-15mm $120.00 Animon Mine Huaron, Pasco Peru This is a very vertical specimen, covered on all sides by sharp, milky quartz crystals. Sphalerite crystals poke through here and there and most of them are partially coated with sparkling, tiny pyrite crystals. Some damage to the quartz crystals but, still, a very good example.	Item #29892 Sphalerite, Quartz 16.0x12.5x5.0 cm Largest Crystal Size: sph-23mm, qu15mm $120.00 Animon Mine Huaron Peru A wonderful plate of lustrous, resinous sphalerite crystals, nicely draped with sparkling quartz crystals, ranging from tiny to 15mm or so in size. Beautiful! Displays well.	Item #29891 Tetrahedrite 11.2x5.8x2.5 cm Largest Crystal Size: 38mm $150.00 Casapalca Mine Huarochiri, Lima Peru A plate of sharp, tetrahedral tetrahedrite crystals, modified by tris-tetrahedral faces. Sweet! Excellent piece from this famous locality.	Item #29890 Lazulite, Fluorapatite, Quartz 8.2x5.2x1.7 cm Largest Crystal Size: L-11mm, Fl-6mm $125.00 Rapid Creek Yukon, Canada This plate of crystals is tilted slightly towards the viewer for excellent display. It shows a drusy covering of quartz crystals, which, in turn, is largely covered by sharp, equant-prismatic, well terminated, white fluorapatite crystals and then crowned with several, deep blue, twinned lazulite crystals. Nice one!
Item #29888 Pyrite 6.5x5.7x3.6 cm Largest Crystal Size: 28mm $150.00 Quiruvilca Mine Santiago de Chuco, La Libertad Peru Really quite a stunning pyrite specimen when displayed vertically. The thick plate of pyrite crystals is crowned with a lustrous cube showing silky, pyritohedral stria and octahedral modifications.	Item #29887 Sphalerite, Quartz 9.8x4.2x1.8 cm Largest Crystal Size: 24mm $70.00 Casapalca Mine Casapalca, Huarochiri Peru This thin plate of quartz crystals has three lustrous, brown, complexly twinned, sphalerite crystals near the center of it. Displays perfectly.	Item #29885 Calcite, Galena, Quartz 6.2x6.5x4.1 cm Largest Crystal Size: c-21mm, g-4mm, q-16mm $75.00 Casapalca Mine Casapalca, Huarochiri Peru This thick plate of very light pink calcite is speckled with sharp cube-octahedra of galena. Some of the galena crystals are nicely spinel-law twinned. The calcite crystals have a white frosting, preferential to the pinacoid faces while the other faces do not have it. Nice looking example!	Item #29884 Molybdenite 3.6x3.5x2.4 cm Largest Crystal Size: 19mm $65.00 Moly Hill Mine Riviere Heva Quebec, Canada A perfect rosette of metallic, lustrous molybdenite is perfectly exposed in this glassy, quartz matrix. It is a sharp crystal with each of the forms on the pinacoid rosette, very well formed.
Item #29883 Sphalerite, Dolomite 4.4x2.5x2.2 cm Largest Crystal Size: 26mm $50.00 Elmwood Mine Carthage Tennessee, USA A beautiful specimen showing a complexly twinned, shalerite crystal perfectly formed on white dolomite crystals. Very good example. Looks great.	Item #29882 Grossular 6.7x6.3x2.4 cm Largest Crystal Size: 14mm $2,700.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada A spectacular, gemmy grossular specimen from one of the best grossular localities in the world. The crystals are all dodecahedra with a generous helping of trapezohedral modifications. Stands perfectly for display. An excellent example of this mineral!	Item #29881 Gypsum, var. selenite 12.0x6.6x5.3 cm Largest Crystal Size: 120mm $75.00 Hines Creek Alberta, Canada Two intergrown, textbook gypsum crystals with some clay inclusions. A little bit of bruising on the terminations. Very nicely fluorescent!	Item #29880 Cubanite 2.4x1.9x0.6 cm Largest Crystal Size: as above $2,450.00 Henderson II Mine Chibougamau Quebec, Canada A spectacular cubanite crystal! This "sixling" shows classic, cubanite twinning, is lustrous and only has one point of attachment on the bottom. Great shape. Very similar on the obverse side. We don't see these very often any more!!
Item #29879 Stibnite 8.3x1.4x0.8 cm Largest Crystal Size: as above $75.00 Xikuangshan Antimony Mine Shaoyang, Hunan China A single, beautifully terminated, well striated crystal of stibnite from this prolific area. The crystal shows that peculiar, "bent" or "warped" crystal form that we often see in stibnite.	Item #29877 Chalcopyrite, Quartz, Pyrite 7.2x6.7x3.3 cm Largest Crystal Size: ch-25mm $150.00 Huaron Mine Pasco Peru An exemplary chalcopyrite specimen! This plate of water clear quartz crystals has a couple of chalcopyrite crystals on it, plus a couple of lustrous pyrite crystals. The biggest chalcopyrite crystal is a perfectly contact twinned tetrahedra. Really nice!	Item #29876 Stibnite, Quartz 8.6x3.6x3.1 cm Largest Crystal Size: 73mm $100.00 Xikuangshan Antimony Mine Shaoyang, Hunan China This cluster of stibnite crystals is composed of lustrous, all terminated crystals, partially encrusted with sugary, drusy quartz crystals. A little rock matrix attached, also, largely encrusted with quartz crystals. Beautiful!	Item #29870 Microcline, Var. Amazonite 5.5x4.1x1.5 cm Largest Crystal Size: n/a $35.00 Delbreuil Twp. Quebec, Canada A fragment of the pleasantly green-blue "amazonite" variety of microcline from an unusual p[egmatite locality. The piece is sawn on one side and polished, parallel to the cleavage plane on the back side. Attractive and interesting. The old geologist label affixed to the piece indicates location and that it was collected in 1978.
Item #29848 Gold, nugget 2.2x1.4x0.6 cm Largest Crystal Size: n/a $790.00 West Mali Mali A thick, dense, gold nugget from Mali that weights 10.47 grams, a third of a troy ounce! only a little rock or other material, still attached. Nice!	Item #29830 Gold, Quartz, Pyrite 5.3x4.4x3.4 cm Largest Crystal Size: n/a $75.00 Kerr Addison Mine Larder Lake Ontario, Canada A nice patch of gold in the lower right of this coarse quartz matrix that has lots of small pyrite crystals disseminated in it and some gold particles here and there.	Item #29821 Gold, Quartz 3.3x2.5x1.0 cm Largest Crystal Size: 5mm $1,700.00 Eagle's Nest Mine Placer County California, USA A lovely cluster of gold crystals, some very sharp, hoppered octahedra with just a tiny amount of quartz attached. Beautiful specimen of crystallized gold! Panneton label accompanies it.	Item #29819 Gold, Quartz 5.4x4.43.9 cm Largest Crystal Size: 10mm $3,500.00 Eagle's Nest Mine Placer County California, USA Rich, yellow native gold crystals are perfectly exposed on the top of this pure, white, quartz matrix. The gold crystals are flattened, twinned octahedra with small modifying faces and vicinal faces. Has a little wire stand, affixed to the base to enable the specimen to display perfectly. Excellent example of crystallized gold from this amazing gold locality! Gruel and Panneton Labels accompany it.
Item #29818 Gold, telluride, Chlorite 5.7x3.7x2.0 cm Largest Crystal Size: n/a $85.00 Kerr Addison Mine Larder Lake Ontario, Canada The quartz-vein matrix holds several clots of deep-yellow native gold, along with some silver gray, associated tellurite mineral, probably altaite. A little dark green chlorite, as well. Nice!	Item #29810 Chrysocolla 10.0x8.5x6.5 cm Largest Crystal Size: n/a $110.00 Planet Mine La Paz County Arizona, USA This is one of the best specimens that we collected at Planet Mine. There is a wide zone across the front of it that holds quite a few, intense-blue-green botryoids of chrysocolla. An excellent specimen that stands very well for display!	Item #29809 Chrysocolla 11.5x10.0x5.5 cm Largest Crystal Size: n/a $75.00 Planet Mine La Paz County Arizona, USA The top and much of the bottom of this gossanous matrix is well endowed with green-blue botryoidal chrysocolla. The chrysocolla is more green-ish blue, in person. Excellent cabinet specimen!	Item #29808 Chrysocolla 7.5x7.3x6.0 cm Largest Crystal Size: n/a $75.00 Planet Mine La Paz County Arizona, USA This is a very striking, small cabinet specimen of botryoidal blue-green chrysocolla. Stands perfectly for display.
Item #29807 Chrysocolla 3.3x2.7x1.6 cm Largest Crystal Size: n/a $35.00 Planet Mine La Paz County Arizona, USA Lots of blue-green botryoids of chrysocolla are present in the vuggy areas on the top of this piece. Very good example of this unusual habit.	Item #29806 Chrysocolla 3.4x3. 1x2.3 cm Largest Crystal Size: n/a $35.00 Planet Mine La Paz County Arizona, USA Bright, blue botryoids of chrysocolla are present in the vug on the top of this black, gossan matrix. Looks great!	Item #29803 Chrysocolla 3.4x2.7x2.0 cm Largest Crystal Size: n/a $45.00 Planet Mine La Paz County Arizona, USA This is a very handsome, small specimen with a cavity in the front that contains a number of smooth, deep-blue chrysocolla botryoids. Very nice looking specimen!	Item #29802 Chrysocolla 7.6x6.5x4.5 cm Largest Crystal Size: n/a $40.00 Planet Mine La Paz County Arizona, USA A seam across the middle of the front of this brownish gossan matrix, shows lots of bright blue, botryoidal chrysocolla.
Item #29801 Chrysocolla 6.0x5.7x3.4 cm Largest Crystal Size: n/a $45.00 Planet Mine La Paz County Arizona, USA Two cavities on the front of this black matrix are lined with bright blue-green botryoidal chrysocolla. Looks great!	Item #29793 Andradite 7.5x5.0x3.2 cm Largest Crystal Size: 15mm $40.00 Stanley Butte Graham County Arizona, USA This solid piece of andradite has its top or front totally covered with sharp, green, dodecahedra of andradite. Nice example!	Item #29792 Andradite 3.5x2.5x1.8 cm Largest Crystal Size: 14mm $35.00 Stanley Butte Graham County Arizona, USA Here is a cluster of those distinctive, green dodecahedra from the famous locality at Stanley Butte. An odd, sort of slightly metallic luster to them. Sharp!	Item #29787 Quartz 5.0x3.9x3.1 cm Largest Crystal Size: 32mm $40.00 Iron Cap Mine Aravaipa, Graham County Arizona, USA Two sceptered quartz crystals are prominent on this specimen. The crystals don't really have prism faces but, instead, stepped rhombohedral faces where the prism faces should be. They are terminated with larger faces resulting in nice scepter growth! Unusual location!
Item #29780 Zunyite 8.0x6.7x6.0 cm Largest Crystal Size: 2.5mm $65.00 Big Bertha Mine Quartzite, La Paz Co. Arizona, USA The top of this quartz matrix has a sugary-micaceous phase on it that contains nicely contrasting, beige, zunyite crystals. Nice sample of this rare silicate mineral from this interesting locality! DKDD	Item #29779 Hematite, Quartz 6.5x5.0x5.0 cm Largest Crystal Size: 9mm $45.00 Big Bertha Mine Quartzite, La Paz Co. Arizona, USA This fragment of massive, vuggy quartz shows a razor-sharp, textbook hematite crystal in a vug at the front. The crystal is very lustrous with sharp pinacoid, rhomb and small prism faces. Super example of hematite from anywhere!! DKDD	Item #29778 Quartz, epimorphs after fluorite 13.0x6.5x6.7 cm Largest Crystal Size: 10mm $65.00 Gringo Gulch Patagonia, Santa Cruz County Arizona, USA This cabinet specimen is well endowed with white octahedrons that are hollow! They are hollow because they once were fluorite octahedra that became coated with drusy quartz crystals and then the fluorite was dissolved away. This process led to the epimorphs that we see today. Handsome, interesting piece!	Item #29776 Vanadinite 5.5x4.0x3.0 cm Largest Crystal Size: 2mm $40.00 Rowley Mine Maricopa County Arizona, USA Vanadinite s one of the lesser known and found minerals from the Rowley Mine. However, there is a vanadium-rich area where it forms nice crystals.! Here is a good, rare example.
Item #29775 Hematite, Quartz 6.0x4.8x3.8 cm Largest Crystal Size: 8mm $35.00 Big Bertha Mine Quartzite, La Paz Co. Arizona, USA An 8mm, razor sharp, hematite crystal is protected in a quartz crystal cavity along with a few smaller ones. The crystal does have a crack in it but is not noticeable and is nicely all held in place. DKDD	Item #29773 Vanadinite 5.7x4.4x2.2 cm Largest Crystal Size: 4mm $45.00 J.C. Holmes Claim Patagonia, Santa Cruz County Arizona, USA A plate of well formed, orange vanadinite crystals. The crystals show sharp prism faces and sharp pyramid faces which is typical of this locality. Nice!	Item #29772 Zunyite 4,8x3.8x2.3 cm Largest Crystal Size: 1mm $40.00 Big Bertha Mine Quartzite, La Paz Co. Arizona, USA The front of this quartz matrix is a micaceous phase that is loaded with small, very sharp crystals of zunyite. The crystals range from colourless to light beige in colour. DKDD	Item #29771 Zunyite 4.3x4.1x2.5 cm Largest Crystal Size: 1mm $40.00 Big Bertha Mine Quartzite, La Paz Co. Arizona, USA Oodles of mm sized, sharp, flattened octahedra of zunyite are present on one side of this quartz matrix. The zunyite crystals are embedded in a micaceous phase in the specimen, not the quartz. DKDD
Item #29767 Hemimorphite 7.5x5.5x3.6 cm Largest Crystal Size: 3mm $40.00 79 Mine Gila County Arizona, USA Sharp, terminated, small hemimorphite crystals are arranged as a botryoidal habit in this handsome specimen. A lesser known habit from the 79 Mine.	Item #29766 Zunyite 6.55.5x5.0 cm Largest Crystal Size: 1.5mm $45.00 Big Bertha Mine Quartzite, La Paz Co. Arizona, USA A micaceous phase that runs along one side of this quartz matrix is loaded with sharp octahedral crystals of zunyite. Clear to beigey -coloured and very sharp! A rare silicate mineral! DKDD	Item #29752 Pectolite 5.4x3.7x3.5 cm Largest Crystal Size: 14mm $40.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada Much of this fragment of white matrix is covered by crystals of pectolite. The top, particularly has very nice, lath-like terminated crystals of pectolite.	Item #29751 Prehnite, Grossular 4.3x5.4x4.0 cm Largest Crystal Size: p-6mm $45.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada This specimen is one series of vugs all over a matrix of prehnite and grossular. The openings are all lined with sharp 1-2mm dodecahedra of grossular and blocky, terminated prisms of prehnite. Both have a pinkish colouration. Unique and interesting!
Item #29747 Diopside, Albite, Prehnite 7.6x5.2x5.0 cm Largest Crystal Size: d-5mm, al-3mm, p-5mm $65.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada This top of this plate is covered with crystals. The brownish, elongated crystals are gemmy, terminated diopside crystals. The pure-white, platy crystals are albite. And the squarish, blocky white crystals are terminated, prehnite prisms.	Item #29746 Diopside 10.5x5.3x3.7 cm Largest Crystal Size: 5mm $65.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada The vug in the top of this matrix is lined with sharp, lustrous, light green diopside crystals that have overgrown an earlier generation of creamy-pinkish diopside or prehnite. An interesting and different association!	Item #29745 Pectolite 2.4x1.7x2.0 cm Largest Crystal Size: 19mm $40.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada A thick, prismatic, very sharply chisel terminated pectolite with a couple of smaller pectolite crystals attached. Very nice pectolite!	Item #29743 Pectolite 2.8x2.2x2.0 cm Largest Crystal Size: 27mm $35.00 Jeffrey Mine Val des Sources (Asbestos) Quebec, Canada This specimen features a sharp, doubly terminated, prismatic pectolite crystal with a couple of smaller pectolite crystals attached.
Item #29738 Quartz, var. Chalcedony, Opal 5.8x4.2x3.4 cm Largest Crystal Size: n/a $35.00 Black Hills Area Safford, Graham County Arizona, USA A really nice looking mound of botryoidal chalcedony and opal that fluoresces bright green in sw uv light. Very striking! DKDD	Item #29737 Quartz, var. Chalcedony, Opal 19.3x6.5x4.4 cm Largest Crystal Size: n/a $45.00 Black Hills Area Safford, Graham County Arizona, USA Lots of botryoidal silica tops a mound of siliceous sinter and is a bright fluorescent green under sw uv light. Striking! DKDD	Item #29736 Quartz, var. Chalcedony, Opal 4.1x3.4x3.0 cm Largest Crystal Size: n/a $35.00 Black Hills Area Safford, Graham County Arizona, USA A cool, little botryoidal mound of silica that has zoned, vibrant, green fluorescence in under sw uv light. Nice one! DKDD	Item #29735 Quartz, var. Chalcedony, Opal 12.5x7.0x5.5 cm Largest Crystal Size: n/a $45.00 Black Hills Area Safford, Graham County Arizona, USA A mass off swirling, botryoidal chalcedony and opal where the top part of the specimen is very fluorescent while the lower part is not. Vibrant! Looks great! DKDD
Item #29734 Quartz, var. Chalcedony, Opal 4.6x3.7x3.5 cm Largest Crystal Size: 6mm $35.00 Black Hills Area Safford, Graham County Arizona, USA This one is actually a big botryoid of chalcedony-opal formed on top of a spray of larger quartz crystals. The best feature though is the bright green fluorescence under SW u-v light. DKDD	Item #29733 Quartz, var. Chalcedony, Opal 6.5x5.0x2.8 cm Largest Crystal Size: 4mm $35.00 Black Hills Area Safford, Graham County Arizona, USA This one is actually a plate of quartz crystal mounds with chalcedony-opal formed on parts of the quartz crystals. Interesting! DKDD	Item #29732 Quartz, var. Chalcedony, Opal 5.5x5.1x2.2 cm Largest Crystal Size: n/a $35.00 Black Hills Area Safford, Graham County Arizona, USA A mound of botryoidal, white silica that fluoresces green in S-W u-v- light. Looks good in any light! :) DKDD	Item #29731 Quartz, var. Chalcedony, Opal 4.3x3.7x4.1 cm Largest Crystal Size: 1mm $35.00 Black Hills Area Safford, Graham County Arizona, USA An interesting mound of white botryoids with actual, small quartz crystals on the left. Fluoresces very nicely! DKDD
Item #29730 Quartz, var. Chalcedony, Opal 13.0x7.6x6.6 cm Largest Crystal Size: n/a $65.00 Black Hills Area Safford, Graham County Arizona, USA A larger specimen of silica that is fluorescent across the top of the botryoids but less so in the lower part. Striking! Displays well. DKDD	Item #29729 Quartz, var. Chalcedony, Opal 12.5x6.5x4.5 cm Largest Crystal Size: n/a $45.00 Black Hills Area Safford, Graham County Arizona, USA A larger, mound of botryoidal chalcedony-opal that looks pretty good in white light but super in u/v light! Great one for a fluorescent display! DKDD	Item #29728 Quartz, var. Chalcedony, Opal 7.5x6.0x3.5 cm Largest Crystal Size: 3mm $45.00 Black Hills Area Safford, Graham County Arizona, USA This is probably the best looking specimen in white light! It is a couple of mounds of chalcedony-opal rimmed with small quartz crystals with a striking knob od silica on the top right that is not fluorescent. Sweet! DKDD	Item #29727 Quartz, var chalcedony, Opal 8.4x6.8x3.5 cm Largest Crystal Size: n/a $40.00 Black Hills Safford, Graham County Arizona, USA A mound of white chalcedony and opal that fluoresces bright green in short wave light. Striking! DKDD
Item #29726 Chalcedony-Opal 9.7x8.5x6.5 cm Largest Crystal Size: n $45.00 Black Hills Safford, Graham County Arizona, USA A couple of areas of shiny chalcedony and opal are present on the front-top of this specimen. The lighter coloured silica fluoresces while the darker coloured does not. Displays well! DKDD	Item #29725 Quartz, Opal 11.0x7.0x7.1 cm Largest Crystal Size: n/a $45.00 Black Hills Safford, Graham County Arizona, USA A botryoidal mass of chalcedony and opal that shows excellent green fluorescence. DKDD	Item #29723 Hemimorphite, 6.6x4.7x4.2 cm Largest Crystal Size: n/a $85.00 79 Mine Gila County Arizona, USA This very attractive specimen has its front covered with light blue botryoidal hemimorphite. The hemimorphite is actually made up of crystals and around the edges of some of them there are sprays of colourless, prismatic hemimorphite. Attractive display specimen of hemimorphite!	Item #29722 Wulfenite 6.1x4.5x4.2 cm Largest Crystal Size: 11mm $40.00 79 Mine Gila County Arizona, USA An opening in this iron oxide matris shows a stunning, gossamer-yellow, "windowpane" wulfenite crystal protected up against the side of the opening. Some smaller wulfenite crystals, as well. The larger one, although missing a tiny bit of one corner, stands out because of the way it catches the light. Gorgeous!
Item #29721 Wulfenite, Willemite, Calcite, Quartz 8.5x5.5x4.3 cm Largest Crystal Size: 8mm $45.00 Red Cloud Mine La Paz County Arizona, USA A vug in this mush of calcite, fluorite, willemite and iron oxide, contains a couple of excellent crystals of orange wulfenite. Lots of willemite in this piece, as well, so it fluoresces nicely. from the famous Red Cloud Mine!	Item #29720 Wulfenite, Willemite, Fluorite 8.0x7.5x5.0 cm Largest Crystal Size: 8mm $40.00 Red Cloud Mine La Paz County Arizona, USA This is a pretty interesting specimen! The quartz crystal-lined cavity on the top holds a superb, elongated, orange wulfenite crystal and many sprays of colourless willemite crystals. Lots of willemite, that fluoresces a bright green, in this specimen. Looks great in white or u/v light!	Item #29719 Wulfenite, Willemite, Quartz, Fluorite 6.2x5.3x3.8 cm Largest Crystal Size: 7mm $45.00 Red Cloud Mine La Paz County Arizona, USA This is a very instructive specimen, as well as attractive. It is a very fresh vein sample, showing a quartz crystal lined vug in the quartz-fluorite vein matrix. In the vug is a superb, tabular, orange wulfenite crystal and willemite crystals that fluoresce a bright green. Very nice association piece! DKDD	Item #29718 Wulfenite, Calcite, Willemite 6.5x4.4x4.7 cm Largest Crystal Size: 6mm $65.00 Red Cloud Mine La Paz County Arizona, USA This specimen has a vug in the front of it, lined with lustrous, orange, well formed crystals of wulfenite, associated with calcite and a few well formed, hexagonal willemite crystals. Looks great!
Item #29716 Wulfenite 1.6x2.3x1.5 cm Largest Crystal Size: 16mm $150.00 Red Cloud Mine La Paz County Arizona, USA A REALLY nice specimen of wulfenite, thumbnail-sized, from the world famous Red cloud Mine. The crystal is a sharp, beveled, tabular crystal with orange colour. Superb!	Item #29714 Wulfenite, Calcite 4.8x2.9x1.5 cm Largest Crystal Size: 10mm $40.00 Red Cloud Mine La Paz County Arizona, USA A number of lustrous, well formed wulfenite crystals on the top of this small plate. The orangey-red tabular crystals are beveled nicely. Very good example from this famous place! DKDD	Item #29713 Wulfenite, Calcite 11.0x8.0x6.0 cm Largest Crystal Size: 9mm $140.00 Red Cloud Mine La Paz County Arizona, USA A very nice cabinet specimen that shows orangey, lustrous wulfenite crystals scattered across the front or top, depending on how you choose to display it. AND it displays well! The wulfenite is associated with a druse of tiny, sparkling calcite crystals. Partly sawn on back. Beautiful!	Item #29712 Mimetite, Baryte, Quartz 6.5x5.3x7.5 cm Largest Crystal Size: 2mm balls $65.00 Rowley Mine Maricopa County Arizona, USA This fragment of vein matrix has an open space on the top, filled with white baryte crystals that are largely covered with tiny, sugary quartz crystals. But interestingly, the baryte-quartz crystals are sprinkled with spheres of orange mimetite. Striking, really!
Item #29711 Wulfenite, Willemite 7.4x4.2x4.0 cm Largest Crystal Size: 8mm $40.00 Red Cloud Mine La Paz County Arizona, USA Lots of lustrous, orange, tabular wulfenite crystals on this specimen, top and bottom. Associated with spiky, small willemite crystals. Fluoresces a yellow-green colour.	Item #29710 Wulfenite 6.3x2.8x1.8 cm Largest Crystal Size: 9mm $35.00 Red Cloud Mine La Paz County Arizona, USA A 9mm, lustrous red-orange wulfenite on fluorite-iron oxide matrix, associated with a number of smaller crystals. From one of the the famous wulfenite locations, in the world. DKDD	Item #29704 Aegirine 8.0x2.2x1.9 cm Largest Crystal Size: 65mm $45.00 Girardville Lac St. Jean Quebec, Canada A bundle of aegirine crystals, the largest and main ones terminated. Nice example!	Item #29703 Aegirine 7.0x2.5x1.8 cm Largest Crystal Size: 70mm $55.00 Girardville Lac St. Jean Quebec, Canada A large, naturally bent, terminated aegirine crystal with some crystal sections attached to it. Lustrous and excellent example!
Item #29701 Aegirine 14.0x3.4x2.5 cm Largest Crystal Size: as above $85.00 Girardville Lac St. Jean Quebec, Canada A large cluster of parallel, slightly curved, aegirine crystals with dark green colour and very good luster. The crystals are terminated on the right side of the photo. The back is much the same but with some feldspar attached where the aegirines contacted the all-rock. Nice!	Item #29699 Microcline, Aegirine 6.0x2.8x2.5 cm Largest Crystal Size: m-32mm, ae-39mm $75.00 Girardville Lac St. Jean Quebec, Canada A nice combination specimen showing a well formed pinky microcline crystal perched on the termination of a dark green, lustrous aegirine crystal. Unique!	Item #29697 Microcline 9.2x6.4x3.5 cm Largest Crystal Size: 48mm $65.00 Girardville Lac St. Jean Quebec, Canada A nice cluster of well formed, light pink microcline crystals. Stands just like this for display. Handsome!	Item #29696 Microcline, Aegirine 8.5x5.0x5.0 cm Largest Crystal Size: 67mm $75.00 Girardville Lac St. Jean Quebec, Canada Two well formed microcline crystals that have some dark-green aegirine crystals on them. Handsome! Sits very nicely for display!
Item #29692 Fluorite 5.7x5.1x5.6 cm Largest Crystal Size: 38mm $75.00 Rogers Mine Madoc Ontario, Canada This baryte and fluorite matrix has a 38mm light green crystal of fluorite on the top of it and some smaller crystals under it. The larger fluorite crystal is an octahedral crystal that has sharp, cubic modifications. Displays very well!	Item #29691 Adularia 5.2x3.0x2.0 cm Largest Crystal Size: 30mm $35.00 Grisson Switzerland This is an interesting parallel growth group of adularia crystals included with chlorite which gives them a dark green colouration. almost faden-like in form. Sharp, striated crystals! Classic "alpine cleft" mineral specimen.	Item #29690 Vlasovite, Eudyalite, Gittinsite 2.8x2.0x1.8 cm Largest Crystal Size: 18mm $45.00 Kipawa Complex Sheffield Lake, Temiscamingue, Quebec, Canada This specimen shows a rounded crystal section of glassy vlasovite, rimmed by gittinsite, embedded in red/pink eudyalite. Rare mineral combination from this unusual alkaline rock complex. Very fluorescent, too! T	Item #29688 Sphalerite, Pyrite 4.0x3.5x3.0 cm Largest Crystal Size: 30mm $35.00 OH Vein, Batchelor Mine Creede Colorado, USA A cluster of sharp, very dark, brown, sphalerite crystals, with a little pyrite. The sphalerite crystals are twined and have hoppered areas in very lustrous faces. Classic. T
Item #29687 Linarite 7.5x6.0x5.0 cm Largest Crystal Size: 1mm $55.00 Blanchard Mine Socorro County New Mexico, Canada Several openings in this fluorite matrix are lined with beautiful, dark blue linarite crystals. The crystals are sharp and encrust fluorite crystals and corroded galena crystals. Beautiful specimen from a classic USA locality. T	Item #29686 Grossular, Millerite 9.0x5.2x3.6 cm Largest Crystal Size: micro $35.00 Orford Nickel Mine St. Denis-de-Brompton Quebec, Canada This specimen is from the first nickel mine in Canada and one of the first in North America, which operated in the 1860s. The specimen is covered with tiny green grossular crystals, chromite crystals and scattered, sharp, often curved or bent millerite crystals.	Item #29685 Fluorite, Baryte 8.0x5.5x4.5 cm Largest Crystal Size: 37mm $120.00 Rogers Mine Madoc Ontario, Canada A cluster of transparent, green fluorite crystals with some white, "crested" baryte peeking out here and there. The fluorite crystals are fairly sharp octahedra with frosted faces and smaller cube modifications at each octahedral corner. Sits perfectly for display. Nice opportunity to obtain a very good, displayable, fluorite crystal specimen from this old fluorite mining area.	Item #29684 Zircon, Feldspar 1.7x1.6x1.7 cm Largest Crystal Size: 16mm $75.00 Smart Mine Sebastopol Township, Renfrew County Ontario, Canada An excellent example of zircon twinned as geniculate twins! This one is reinforced on matrix. The twins show the requisite, elbow-shaped twinning. The right termination is intact while the left termination si missing a bit. Otherwise a very good example of this twin law.