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 #29130 Copper 14.2x3.5x3.0 cm Largest Crystal Size: 50mm $425.00 Keweenaw Peninsula Michigan, USA This is an interesting one! It is a very well crystallized, elongated crystal or crystals of native copper, perhaps twinned, in a long aggregate. Look at the sharpness of the crystal on the end! The thing is, the bas does not naturally belong to the elongated crystal. The elongated crystal has been inserted into a hole drilled in the base. I know. It is unusual! Like a paper weight. It is an extremely well crystallized specimen of native copper!	Item #29126 Copper 9.3x7.1x5.0 cm Largest Crystal Size: n/a $350.00 Keweenaw Peninsula Michigan, USA Here is an interesting and unique example of the copper "skulls" found in the Keweenaw Peninsula. Some of the copper deposits in the Keweenaw Peninsula are in conglomerate beds. Sometimes, through geological processes, cobbles in the conglomerates are partially replaced by native copper. The same processes cause the cobbles and matrix to deteriorate and what remains is a cast of a conglomerate cobble. Here is an example that is, in fact, TWO replaced cobbles, side by side. Excellent and unique!	Item #29123 Copper, elongated amygdules 9.8x8.0x4.8 cm Largest Crystal Size: n $650.00 Keweenaw Peninsula Michigan, USA A rather spectacular example of this mineralogical and geological oddity. Here we see several elongated, interconnected masses of native copper that were amydule (gass bubbles) fillings, similar to many that we see in the Keweenawan volcanics, except that these ones were elongated as the basaly flowed during cooling. Eventually, during the mining process, the basalt was fragmented revealing these strange and interesting shapes. Don't know the exact mine. Was out of an old collection where the catalogue was lost. Excellent example!	Item #29120 Copper 14.2x7.1x5.6 cm Largest Crystal Size: n/a $150.00 Keweenaw Peninsula Michigan, USA This is such a cool old-timer! It is a series of flattened crystals of native copper that formed in joint planes between blocks of basalt. It is old and oxidized. It came out of an old collection, dating from the 1920's. The catalogue was lost and this is the only info that I have on the specimen! Very cool.
Item #29117 Platinum, Gold 0.3x0.3x0.2 cm Largest Crystal Size: as above $110.00 Ledyanoi Dep., nr Korf Kamchatka Pen. , Russia Here is an unusual nugget! It is a metallic nugget composed of TWO precious elements, platinum and gold. Rare and excellent!	Item #29116 Poughite 2.5x3.4x2.2 cm Largest Crystal Size: n/a $85.00 Tambo Mine, El Indio 4th Region , Chile The Tambo Mine at the El Indio complex has produced some very rare minerals, Poughite being one. Here is a vuggy specimen showing botryoidal crusts of this very rare mineral named after the famous, late Fred Pough.	Item #29115 Thomsenolite 2.2x2.3x1.4 cm Largest Crystal Size: n/a $45.00 Ivigtut , Greenland A vuggy matrix that shows some excellent, elongated thomsenolite crystals, protected in the vugs. Beautiful!	Item #29114 Cosalite 3.5x2.4x2.4 cm Largest Crystal Size: n/a $55.00 Christopher Mine Cobalt Ontario, Canada This specimen is a portion of a vuggy calcite vein that shows a metallic, acicular mineral, cosalite, in the vugs with the calcite. Unusual!
Item #29113 Grossular 4.4x3.0x2.9 cm Largest Crystal Size: 2mm $45.00 Old British Canadian Mine Black Lake Quebec, Canada The Bc Mine was not known for great grossular specimens, although, nice grossulars did occur there. Here is a very example of small, well formed grossular crystals on matrix. Unusual!	Item #29111 Gersdorffite, Quartz 2.3x2.9x1.8 cm Largest Crystal Size: 2mm $45.00 South M. Ural Mtns Russia This fragment of polished quartz contains some very sharp octahedral crystals of gersdorffite. Sharp!	Item #29109 Osmium, (var. Iridosmine) 0.2x0.3x0.05 cm Largest Crystal Size: as above $85.00 Nizhne, Tagilsk Ural Mtns Russia A small nugget of this rare native element specimen! Solid.	Item #29108 Gaudefroyite 2.5x2.6x1.0 cm Largest Crystal Size: 4mm $45.00 N'Chwaning Mine Kuruman South Africa Sharp crystals of gaudefroyite are present on this matrix of interlocking garnet crystals. Small but excellent!
Item #29107 Cosalite 2.0x1.6x1.9 cm Largest Crystal Size: 4mm $75.00 Kara-oba , Kazakhstan A cavity in this specimen hold a number of deeply striated, lustrous, silvery-metallic crystals of this relatively rare sulphosalt mineral.	Item #29105 Sperrylite 4.7x2.2x2.2 cm Largest Crystal Size: 0.05mm $85.00 Vermilion Mine Worthington, (Nr Sudbury) Ontario, Canada There are a couple of crystals of sperrylite on this specimen but only one is complete. It is a fairly sharp cube with small modifications. Harder to get these specimens, these days.	Item #29102 Copper 17.0x9.0x1.2 cm Largest Crystal Size: 30mm $160.00 Keweenaw Peninsula Michigan, USA Here is an old timer! This is a branch of sharp copper crystals without matrix that shows the original patina, although probably darkened a little bit, over time. The crystals are complex and intertwined, no doubt twinned. Has an old catalogue number JG 171 affixed to the specimen. Nice one!	Item #29101 Copper 15.3x9.5x3.2 cm Largest Crystal Size: 10mm $1,900.00 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!
Item #29100 Heulandite, Analcime 4.2x3.5x4.6 cm Largest Crystal Size: He 12mm, An 8mm $75.00 Amethyst Cove Bay of Fundy Nova Scotia, Canada A superb example of this combination. It shows sharp, spiky heulandite crystals wit ha light brown colouration combined with glassy, sharp analcime crystals. Both of these minerals on crystals of "sinter" quartx. Very nice!	Item #29098 Suolunite 3.0x1.5x1.5 cm Largest Crystal Size: n/a $75.00 Mine Lac D'amiante St.Joseph-de-coleraine Quebec, Canada A plate of very light violet suolunite showing radial growth on cross section. Sort of like light lavender prehnite! Rare!	Item #29097 Calcite 7.3x7.0x4.0 cm Largest Crystal Size: 35mm $45.00 Dalen-Kjorholt Mine, Level 152 Brevik Norway This cluster of calcite crystals shows thin-bladed, colourless calcite crystals overgrowing a more golden generation of crystals. Nice example!	Item #29096 Pyromorphite 9.0x6.9x4.5 cm Largest Crystal Size: 11mm $40.00 Ems Germany Crystals of brownish pyromorphite up to a little over a cm on beige matrix. Unusual to see these over this side of the Atlantic!
Item #29095 Stilbite 6.5x5.1x3.4 cm Largest Crystal Size: 25mm $35.00 Harbourville Bay of Fundy Nova Scotia, Canada An attractive specimen of bladed white to colourless stilbite crystals, perhaps with a touch of beige. Nice!	Item #29094 Calcite 5.5x3.5x1.7 cm Largest Crystal Size: 15mm $45.00 Level 5, Engineer Vein, Engineer Mine Nr. Atlin British Columbia, Canada A very nice plate of quartz crystals from this famous gold mine near the BC/Yukon border. The crystals are white, simple prismatic crystals with rhombohedral terminations. Not common to see specimens like this!	Item #29093 Calcite 8.0x7.0x2.5 cm Largest Crystal Size: 85mm $40.00 Dalen-Kjorholt Mine, Level 152 Brevik Norway An interesting and beautiful crystal from this great calcite locality. It is a fairly flat crystal, probably twinned rhombohedra. Looks great!	Item #29092 Descloizite 3.83.8x2.5 cm Largest Crystal Size: 8mm $40.00 Grootfontein , Namibia This specimen is almost all descloizite. Nice sharp, blocky crystals. On the underside of the cluster, though is a coating of tiny, white hexagonal crystals, that fluoresce green. Willemite! Nice one!
Item #29091 Stilbite ps ?, Analcime 3.4x2.5x1.5 cm Largest Crystal Size: 22mm ball $45.00 Cape D'Or Bay of Fundy Nova Scotia, Canada A wonderful epimorph of stilbite after mesolite, on stilbite crystals. There is actually a mesolite core under the epimorph with a large air space between the stilbite and mesolite!	Item #29090 Sphalerite 3.5x3.0x2.4 cm Largest Crystal Size: 10mm $40.00 Lafarge Quarry Wentworth County Ontario, Canada A nice cluster of dark-brown sphalerite crystals with limestone breccia fragments holding them together. Nice!	Item #29089 Proustite 5.0x4.0x4.4 cm Largest Crystal Size: 4mm $40.00 Uchucchcua Mine Oyon Province, Lima Dept. Peru Ruby red crystals of proustite are scattered in this carbonate quartz vug. The biggest crystals are complete with a third crystal broken away. Several other smaller crystals are also in the vug.	Item #29088 Hematite 6.3x4.0x0.7 cm Largest Crystal Size: n/a $35.00 Yarrow Twp Ontario, Canada A handsome plater of botryoidal, black hematite with reddish tinges. Looks great!
Item #29087 Arsenopyrite 5.5x3.1x3.8 cm Largest Crystal Size: 1mm $35.00 Langis Mine Casey Township Ontario, Canada The vug at the front of this matrix of massive arsenides is completely lined with sharp crystals of arsenopyrite. Handsome piece!	Item #29086 Stibnite 6.2x4.9x2.0 cm Largest Crystal Size: 28mm $45.00 Felsőbánya (Baia Sprie) Romania A wonderful cluster of bladed stibnite crystals, partially encrusted with calcite crystals. Most are terminated with some near the front abraded. Looks great!	Item #29085 Pyrargyrite 3.9x3.0x2.9 cm Largest Crystal Size: 1mm $65.00 San Genaro Mine, Castrovirreyna Huancavelica Peru Lots of ruby silver crystals in the open spaces of this matrix of ruby silver. I'm not convinced that this is pyrargyrite and it may be miargyrite.	Item #29075 Mercury, Cinnabar 8.0x5.2x4.3 cm Largest Crystal Size: n/a $325.00 Almaden Ciudad Real Spain This is one of the richest native mercury specimens that I've seen! The front of this specimen exposes a quartz-cinnabar vein with a wide opening that is stuffed with native mercury between the crystals. If you look closely at the mercury, you can see that is is largely balls of liquid mineral. The ONLY liquid mineral! Of course, this specimen comes from the famous Almaden Mine, which has been mined for millennia, since the time of the Romans!
Item #29074 Silver 6.1x2.1x2.0 cm Largest Crystal Size: 60mm $150.00 Hongda Mine Datong, Shangxi China A very cool, dramatic wire silver specimen showing a 60mm wire plus some smaller ones protruding from a matrix that seems to be composed of calcite and clay-like minerals. The longest wire has a taper along its length. Dramatic!	Item #29073 Silver 11.6x3.0x2.0 cm Largest Crystal Size: 107mm $250.00 Hongda Mine Datong, Shangxi China A very dramatic specimen of native silver! This piece is a small fragment of vein material or fault gouge-like material with a VERY long wire of silver protruding from it and some embedded in it. The wire has a very fine taper to it. Makes for a dramatic specimen!	Item #29070 Silver, Arsenic 9.6x7.0x3.6 cm Largest Crystal Size: 10mm $450.00 Pohla, Erzgebirge Saxony Germany This specimen is a classic! It is a large fragment of native arsenic where a little of the arsenic has been dissolved away to expose crystals of native silver. The silver is in dendritic form, a slightly darkened, fairly thick and closely clustered in some areas and spread out and very frond-like in other areas. Could be etched further! A Bergakademie Freiberg label accompanies the specimen.	Item #29068 Diamond 1-3 mm each cm Largest Crystal Size: 1-3mm $350.00 Kimberley South Africa Here is an interesting one! Eight rough diamonds! They are not so rough though. Two are sharp, greenish octahedra while one is a colourless octahedron. One is a sharp, yellow cube with some sort twinning happening. One is a deep, yellow rounded, twinned macle. One is an elongated colourless, complex twin. One is a distorted but very sharp octahedron. All are gemmy and lustrous crystals of this mineral, the hardest known.
Item #29060 Acanthite, ps Argentite 4.2x3.9x0.9 cm Largest Crystal Size: n/a $75.00 Keeley Mine South Lorrain Township Ontario, Canada This specimen is solid silver sulphide but is really a cast after other minerals. One side is heavily slickensided, while the other is all casts of argentite after calcite crystals., showing calcite crystal imprints. There are a few argentite crystals at the edges. Very interesting!	Item #29059 Scheelite 7.7x7.5x6.5 cm Largest Crystal Size: n/a $75.00 Hollinger Mine Timmins Ontario, Canada This section of quartz vein has a thick clot of orange scheelite that is cut by many veinlets of greasy-white quartz. Classic Timmins camp scheelite vein material. Just minus the gold! :) Very fluorescent!	Item #29058 Silver, Uraninite 4.0x2.6x2.0 cm Largest Crystal Size: 3mm $85.00 Eldorado Mine Port Radium Northwest Territories, Canada This specimen is a portion of a shattered shattered quartz, calcite and uraninite vein that is held together by crystallized silver. That is, dendritic silver courses the length of the specimen and holds all the pieces together. It is a metal of course and did not shatter during the blast. Radioactive. Interesting specimen from an unusual location.	Item #29056 Scheelite 7.0x7.1x3.7 cm Largest Crystal Size: n/a $75.00 Hollinger Mine Timmins Ontario, Canada A large mass of orange scheelite on the front of a portion of a white quartz vein in rock. Brightly fluorescent!
Item #29043 Corundum 6.1x4.1x2.5 cm Largest Crystal Size: as above $40.00 Burgess Mine New Carlow Ontario, USA Here is a fairly well formed, hexagonal corundum crystal, singly terminated and just little bits of matrix attached to it. Very good locality piece!	Item #29039 Kermesite 3.2x3.5x1.8 cm Largest Crystal Size: 5mm $40.00 Lac Nicolet Antimony Mine Ham Sud Quebec, Canada Lots of sprays of deep-red, finely compacted crystals of kermesite in kermesite-stibnite-valentinite matrix. There are also some poor valentinite crystals here and there. Rich!	Item #29038 Almandine 4.8x3.3x2.4 cm Largest Crystal Size: 25mm $75.00 Chisel Lake Mine Snow Lake Manitoba, Canada This specimen shows a very sharp crystal of almandine partly embedded in chlorite schist. The almandine does have a couple of nicks but this is to be expected in a crystal formed in massive rock. Looks great!	Item #29035 Azurite 4.2x3.0x2.2 cm Largest Crystal Size: 8mm ball $75.00 Bisbee Cochise County Arizona, USA Here is a very nice representative example of azurite and malachite from one of the greatest copper mines ever. This piece shows botryoidal aggregates of deep-blue azurite crystals on and with light green malachite. Beautiful!
Item #29034 Kermesite, Stibnite 3.9x2.8x2.0 cm Largest Crystal Size: 7mm $45.00 Lac Nicolet Antimony Mine Ham Sud Quebec, Canada Lots of sprays of kermesite and stibnite crystals embedded in this matrix of the same minerals plus some other antimony oxides. Interesting stuff!	Item #29030 Kermesite 4.5x5.0x3.9 cm Largest Crystal Size: 5mm $45.00 Lac Nicolet Antimony Mine Ham Sud Quebec, Canada A couple of sprays of deep-red kermnesite that taper to senarmontite at the ends of the crystals are present in an opening in stibnite-kermesite-valentinite matrix. A few valentinite crystals, as well. Unusual!	Item #29029 Kermesite 4.8x3.8x2.0 cm Largest Crystal Size: 4mm $65.00 Lac Nicolet Sb mine Lac Nicolet, Ham Sud Quebec, Canada A number of sprays of kermesite are present on this specimen, as well as prismatic, creamy-whitish valentinite crystals. Very unusual mineralization!	Item #29028 Kermesite, Valentinite 5.1x3.9x3.2 cm Largest Crystal Size: 5mm $65.00 Lac Nicolet Sb mine Lac Nicolet, Ham Sud Quebec, Canada This specimen has several really nice sprays of deep-red, kermesite along with tabular crystals of creamy-whitish valentinite. Matrix is a mix of stibnite, quartz and valentinite.
Item #29024 Silver, Safflorite 12.5x10.5x1.6 cm $75.00 Foster Mine Cobalt Ontario, Canada An example of the fine high grade silver mineralization from the Foster Mine. It shows, thick, dendritic silver embedded in carbonate matrix. Rich!	Item #29022 Silver, Safflorite 8.1x4.4x2.1 cm Largest Crystal Size: 12mm $55.00 Foster Mine Cobalt Ontario, Canada Nicely crystallized silver, coated by safflorite is embedded in calcite-dolomite matrix. Rich!	Item #29021 Silver, Safflorite 15.0x11.8x3.7 cm $140.00 Foster Mine Canada Very rich, well formed dendritic silver crystals are present through this calcite matrix. The silver has a coating of silvery-metallic safflorite, the cobalt arsenide mineral. Really nice example!	Item #29019 Silver, Nickeline 9.5x8.5x1.6 cm Largest Crystal Size: 12mm $95.00 Eldorado Mine Port Radium Northwest Territories, Canada Very fine filigree, "herringbone" silver, partially coated by nickeline. An unusual and excellent specimen from this very famous silver and uranium Mine. Not radioactive.
Item #29018 Silver, Safflorite 8.1x6.2x4.0 cm Largest Crystal Size: 28mm $80.00 Foster Mine Canada Rich, coarse, dendritic silver cuts through this calcite matrix. The silver has a thick coating of safflorite on it. Excellent!	Item #29017 Silver., Nickeline 10.1x7.5x1.2 cm Largest Crystal Size: 11mm $95.00 Eldorado Mine Port Radium Northwest Territories, Canada Very fine, filigree dendritic silver is embedded in nickeline in this specimen. Wonderful specimen from this famous, long closed silver-uranium mine in the far north!	Item #29016 Silver, Safflorite 9.8x8.4x1.9 cm Largest Crystal Size: 35mm $65.00 Foster Mine Cobalt Ontario, Canada Long, dendritic crystals of silver coated with safflorite are embedded in calcite and dolomite vein matrix. Rich!	Item #29015 Silver, Safflorite 8.4x10.0x3.2 cm Largest Crystal Size: 42mm $80.00 Foster Mine Cobalt Canada Long, dendritic crystals of silver coated with safflorite are embedded in calcite and dolomite vein matrix. Rich!
Item #29010 Quartz 18.0x8.0x2.2 cm Largest Crystal Size: as above $75.00 Minas Gerais, Brazil A nice, flattened, re-healed, shard of quartz from this amazing pegmatite area. When pegmatite pockets are forming/cooling, often they implode, causing the crystals to fracture. Sometimes thgey start re-growing, again, from residual fluids in the pocket, resulting in crystals like this.	Item #29009 Scheelite 8.5x2.0 Tube cm Largest Crystal Size: n/a $55.00 East Nevada Nevada, USA This old timer is a vial of scheelite fragments with a little note that simply states "Scheelite, East Nevada". Nicely fluorescent!	Item #29008 Scheelite 8.5x2.0 Tube cm Largest Crystal Size: n/a $55.00 East Nevada Nevada, USA An oldy! This specimen is actually a vial of fragments of scheelite that fluoresce very well. The vial has an old, antique piece of paper in it that states just "Scheelite, East Nevada".	Item #29007 Scheelite 5.3x2.9x1.7 cm Largest Crystal Size: n/a $75.00 Moose River Mine Nova Scotia, Canada A chunk of solid scheelite with some veined quartz, from this old gold mine. Shows excellent fluorescence!
Item #29004 Zincite 2.5x6.0 box cm Largest Crystal Size: 25mm $35.00 Franklin New Jersey, USA This is a little odd but perhaps someone would like it? It is a small box of fragments of solid zincite from the famous occurrence at Franklin. Zincite was one of the ore minerals at this famous ordbody!	Item #29003 Sperrylite 5.3x4.0x3.6 cm Largest Crystal Size: 1mm $75.00 Vermillion, Denison TWP Sudbury Dist (Dana Loc) Ontario, Canada A couple of crystals of this rare platinum arsenide are present on this oxidized ore from the famous Vermillion Mine. One is complete and the other is not. Getting harder to come by these, these days. The Vermillion mine has been closed for many decades and bulldozed and rehabbed, now.	Item #29002 Huebnerite 6.0x4.5x3.0 cm Largest Crystal Size: n/a $35.00 Silverton San Juan Co Colorado, USA Sort of feathery, groups of huebnerite crystals are embedded in quartz. Nice example of this mineral from the famous Silverton mining area.	Item #29001 Witherite 5.3x5.4x5.0 cm Largest Crystal Size: as above $45.00 Cumbria, England Here is an odd one! This is a peculiar nodule of witherite, showing some crystal structure. Sorry, this is all the locality information that I have. Dense! Very interesting!
Item #29000 Spodumene 6.0x9.5x6.2 cm Largest Crystal Size: n/a $65.00 Foote Mine Kings Mtn. North Carolina, USA Here is a part crystal of spodumene from the famous Foote Mine, a large pegmatite that was exploited many decades ago! Actually, it is a couple of spodumene crystals squished together! Nice!	Item #28997 Copper, Skull 20.0x16.0x13.0 cm Largest Crystal Size: as above $1,100.00 Keweenaw Peninsula Michigan, USA A MONSTER specimen of native copper that is a classic "copper skull" from the Keweenaw Peninsula. It is, perhaps the largest that I have seen. These types of formations occur when copper solutions invade conglomerate beds and partially replace cobbles in the conglomerate. When the conglomerate deteriorates, a copper form like this results and is recovered during the mining process. Usually they are much smaller than this. Amazing!	Item #28993 Silver, Calcite 11.0x9.3x7.6 cm Largest Crystal Size: 25mm $950.00 Hongda Mine Datong, Shangxi China This specimen is just wires of silver and calcite! The top of the specimen is an opening in calcite that shows hundreds of wires of native silver, with just a very light darkened patina. The rest of the specimen is just coarse calcite that is laced with wire silver in a very high density. If you dissolved the calcite away, you would have a large nest of just wire silver. Quite amazing! AND displays well!	Item #28992 Iron, Terrestrial 14.0x9.5x8.0 cm Largest Crystal Size: n/a $1,900.00 Hungtukan Massif Taimyr, Siberia Russia The largest specimen of native iron that I have ever seen! This large nodule of native iron is mostly composed of iron with some black rock included or surrounding it. The piece is sawn on the front and exposes the fascinating mineralogical texture within. How does native iron form? In this case, the dark, ultrabasic iron-silicate containing rock, intruded through carbonaceous sediments. In the process, a reduction recation occurred between the rock and the carbon in the sediments to produce clots of native iron! This is the biggest and best sample I have seen. Displays perfectly!
Item #28984 Azurite, Malachite 2.8x1.6x2.1 (half) cm Largest Crystal Size: 30mm ball $45.00 Blue Ball Mine Miami Arizona, USA Do you have blue balls? Here is a good example of blue azurite balls with a green malachite interior from the classic "Blue Balls" claim in Arizona. These rounded aggregates form in soft clay-fillings in weathered rock at this locality. Nice!	Item #28982 Mimetite 4.2x2.9x3.0 cm Largest Crystal Size: 8mm $35.00 Tsumeb Mine Otjikoto Region Namibia Sharp, yellow, crystals of mimetite are generously scattered through the openings in this limonite matrix. Nice crystals!	Item #28981 Scholzite 2.7x2.5x3.2 cm Largest Crystal Size: 8mm $65.00 Reaphook Hill, Nr Brennan Flinders Range South Australia Cavities on the top of this gossanous matrix are packed with colourless, acicular crystals of scholzite. Very nice!	Item #28980 Smithsonite 4.0x2.4x2.8 cm Largest Crystal Size: 15mm $75.00 Tsumeb Mine Otjikoto Region Namibia A wonderful cluster of light pink, well-formed scalenohedra of this zinc carbonate mineral. Nice one!
Item #28979 Pyromorphite 3.7x2.8x2.9 cm Largest Crystal Size: n/a $55.00 Susanna Mine Leadhills Scotland OK, it is not a killer pyromorphite but it is an interesting specimen with very nice micro crystals from this classic Scottish lead mining area! Rich!	Item #28978 Sarabauite 2.0x1.5x2.3 cm Largest Crystal Size: n/a $45.00 Sarabau Mine Sarawak , Malasia This matrix has rich inclusions of orange-red cleavages of sarabauite. This mineral is a very peculiar mineral which is sort of a hybrid sulphide and oxide, perhaps oxy-sulphide? From the type locality.	Item #28975 Acanthite 1.8x1.5x1.0 cm Largest Crystal Size: 9mm $40.00 Guanajuato Guanajuato, Mexico A sharp, composite, cube-octahedron of silver sulphide showing well formed cube faces modified by octahedral faces on the corners. Nice!.	Item #28973 Corundum (Bronze) 1.7x1.3x3.1 cm Largest Crystal Size: as above $35.00 Burgess Mine New Carlow Ontario, Canada A fairly well-formed, hexagonal corundum crystal from the corundum area around New Carlow. The crystal is brown and partly intergrown with muscovite on one side but sharp and free of muscovite the rest of the way around. I don't think this locality has operated for 90-100 years!
Item #28972 Cuprite 2.8x2.8x2.6 cm Largest Crystal Size: 1mm $40.00 Tsumeb Mine Otjikoto Namibia Lots of small cuprite crystals on a thick crust of massive cuprite, associated with calcite. Nice example of this copper oxide mineral.	Item #28971 Cuprite 2.7x2.5x2.3 cm Largest Crystal Size: 10mm $45.00 Mashamba West Mine Shaba Zaire Simple octahedral of cuprite jumbled together in a matrix of another copper oxide mineral. The octahedral faces dominate on these lustrous crystals with little if any, tiny modifying faces. Famous cuprite locality!	Item #28968 Cassiterite 3.0x2.0x2.0 cm Largest Crystal Size: as above $35.00 Ximeng Yunnan Prov. China This area of china is the modern-day, classic area of excellent cassiterite crystals. Here is a complexly twinned crystal. Pitch-black and lusterous. A bit abraded but still instructional.	Item #28965 Cerussite 3.2x2.8x2.3 cm Largest Crystal Size: 9mm $45.00 Bunker Hill Mine, 9 Level Jersy Orebody, Kellog Idaho, USA Here is a less common mineral from the Bunker Hill Mine. We don't often see reticulated, "snowflake" configuration cerussite from Bunker hill but here is a piece with several, interlocked together. Nice!
Item #28964 Cerussite 0.6x0.8x2.5 cm Largest Crystal Size: as above $35.00 Tsumeb Namibia Cerussite is usually always twinned. So this one is but just barely wit ha couple of small twinned members on one sidde. The rest of it is just one, single crystal. Unusual. It is well formed, colourless and fairly gemmy inside. It is, in fact, doubly terminated on one side where the crystal droops over the edge of the small piece of matrix. A couple of slight chips in the main termination. Nice looking, instructive crystal!	Item #28962 Clinochlore 3.5x2.3x1.7 cm Largest Crystal Size: 26mm $75.00 Michigamme Mine Marquette County Michigan, USA Here is a classic pseudomorph! It is an excellent example of chlorite replacing a dodecahedral garnet crystal. These pseudomorphs are well known from this old locality. Sharp!	Item #28961 Dolomite 3.5x2.8x2.1 cm Largest Crystal Size: 31mm $55.00 Brumado Bahia Brazil A sharp, twinned dolomite crystal from one of the better dolomite crystal localities in the world. The crystal twin plane is right down the middle of the crystal and it also shows strong zoning. Unusual, interesting crystal.	Item #28960 Diopside, Grossular 2.0x2.0x0.7 cm Largest Crystal Size: Di 7mm, Gr 6mm $55.00 Jeffrey Mine Asbestos Quebec, Canada This thumbnail-sized specimen has a couple of nice, orangey grossular crystals on a matrix coated with light green diopside crystals. This is a nice example from this classic grossular locality!
Item #28959 Diopside 2.6x1.2x1.8 cm Largest Crystal Size: as above $35.00 Orford Nickel Mine St Denis De Brompton Quebec, Canada The diopsides from the Orford Nickel Mine are typical of this very thick, twinned tabular crystal. The crystal is a light green and has an excellent termination and prism faces. Nice example!	Item #28958 Carrollite 2.0x2.5x2.7 cm Largest Crystal Size: 9mm $35.00 Kamfundwa Mine Kambove Republic of the Congo A couple of nice, bright , lustrous carrollite crystals on calcite. Such bright crystals! A little abrasion. Nice example.	Item #28957 Ettringite 1.5x0.5x0.4 cm Largest Crystal Size: as above $45.00 N'Chwaning Mine Kuruman Northern Cape, South Africa A beautiful, well terminated crystal of this relatively rare mineral. It has a smaller crystal attached to the base. Sweet!	Item #28956 Enargite 3.9x3.0x1.4 cm Largest Crystal Size: 11mm $40.00 Leonard Butte, Silver Bow Co. Montana, USA This specimen shows a thick, tabular crystal of this copper sulphosalt amongst other crystals and crystal sections of enargite and pyrite. From one of the localities that produced the best!
Item #28955 Euclase 1.5x1.0x0.6 cm Largest Crystal Size: 10mm $55.00 Diamontaina Minas Gerais Brazil An excellent, colourless, gemmy crystal of euclase, attached to a porous, pegmatite matrix. Really well formed crystal from this great pegmatite area!	Item #28947 Normandite 2.1x1.8x2.0 cm Largest Crystal Size: n/a $75.00 Khibina Mountains Kola Peninsula Russia A superb example of this rare niobium/zirconium silicate mineral. The piece shows a large spray at the front of the matrix and there is a second spray at the back of the specimen. Excellent piece from this amazing alkaline intrusive area!	Item #28946 Pyromorphite 1.7x1.5x1.3 cm Largest Crystal Size: 9mm $45.00 Les Farges Mine Correze France An excellent, cluster of sharp, well formed pyromorphite crystals with a bright green colouration. The crystals have that hollowed terminal habit that pyromorphite often has. Nice piece from the classic French locality.	Item #28943 Phenakite Phenakite cm Largest Crystal Size: as above $45.00 Tait Farm Bancroft Ontario, Canada One of the rarer minerals at the Tait Farm, occurrence are phenakite crystals. This one is a bit rough but all the faces are there. Good prism faces and nice single termination.
Item #28942 Quartz (japan law) 2.1x2.6x0.3 cm Largest Crystal Size: as above $85.00 PC Mine Jefferson County Montana, USA A beautiful example of a quartz crystals twinned on the "Japan Law" after the first major place the twinning was noted from. This example shows the, close to, 87 degree 33 minute angle that such crystals must be conjoined at and has a nice "suture" line at the interface of the two twin members. From a, I believe, worked out locality.	Item #28941 Phenakite 1.3x2.0x1.1 cm Largest Crystal Size: 4mm $65.00 Mt. Antero Buena Vista, Chaffee Co. Colorado, USA This specimen shows a superb phenakite crystal on quartz crystals. The colourless crystal has sharp faces and is a very nice example of this beryllium mineral.	Item #28939 Rutile 1.7x1.8x1.2 cm Largest Crystal Size: as above $45.00 Graves MTN Lincoln Co. (Dana Loc.) Georgia, USA A chunky, twinned crystal of rutile from this famous locality. No matrix.	Item #28937 Rutile 1.9x2.0x2.1 cm Largest Crystal Size: 0.8 $55.00 Champion Spark Plug Mine Mono Co. California, USA A twinned, lustrous, rutile crystal embedded in matrix. Famous locality!
Item #28934 Rutile 2.4x2.9x1.3 cm Largest Crystal Size: 8mm $45.00 Lac McGregor, Nr. Perkins Gatineau Dist. Quebec, Canada An "elbow" twin of rutile from one of the most famous Canadian Localities. It is not a complete crystal at one end but shows the twinning law very well. Nice!	Item #28931 Rhodonite 3.5x1.7x1.6 cm Largest Crystal Size: as above $75.00 Broken Hill Mine New South Wales Australia These rhodonite crystals form in coarsely crystallized gaena, at the /Broken Hill Mine. You can see, small amounts of galena attached to this single crystal. It is contacted on the back but looks great from the display side.	Item #28929 Rhodonite 1.7x2.2x2.9 cm Largest Crystal Size: 10mm $55.00 Sterling Co. Franklin New Jersey, USA Here is a nice, well formed rhodonite crystal in pure white calcite from the famous Franklin zinc mining area. Nice example!	Item #28926 Stephanite 1.4x2.4x2.0 cm Largest Crystal Size: 7mm $45.00 Guadalupe Arcos Mine Zacualpan Mexico Some sharp but malformed stephanite crystals on quartz matrix from this silver mining region. One of the less common silver sulphosalts!