David K. Joyce

Mexico, Various Minerals and Localities

Here are some very nice specimens that just don't fit into any of the other categories. All very nice!

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

Click on any of the following thumbnails to view a larger image of the specimen.

fluorapatite, Quartz var ChalcedonyMexico, Various Minerals and Localities
  • Item #13447
  • fluorapatite, Quartz var Chalcedony
  • 6.0x3.9x2.5 cm
  • Largest Crystal Size: 22mm
  • $40.00
  • Cerro del Mercado
  • Durango
    Mexico
  • A really nice, gemmy yellow fluorapatite crystal partially embedded in interlocking quartz crystals, coloured red by hematite. Interestingly, there is a growth of chalcedony on the front of the specimen, as well. Sawn back. Displays very well.
Gypsum, var. SeleniteMexico, Various Minerals and Localities
  • Item #18709
  • Gypsum, var. Selenite
  • 14.1x9.5x4.1 cm
  • Largest Crystal Size: 23mm
  • $110.00
  • Los Lamentos Mine
  • Chihuahua
    Mexico
  • A plate of curly-cue crystals of gypsum. An excellent example of this habit of gypsum!
CalciteMexico, Various Minerals and Localities
  • Item #20268
  • Calcite
  • 11.5x11.0x8.0 cm
  • Largest Crystal Size: 21mm
  • $75.00
  • Chihuahua
    Mexico
  • A large cluster of sharp but rounded, lustrous calcite crystals. The crystals are, essentially, complex, modified scalenohedra with reddish inclusions of hematite or iron-rich clay. Sorry, Chihuahua is the best locality info that I have. Looks great!
Arsenopyrite, QuartzMexico, Various Minerals and Localities
  • Item #20911
  • Arsenopyrite, Quartz
  • 11.5x8.2x4.0 cm
  • Largest Crystal Size: Ar 11mm, Qu 7mm
  • $120.00
  • Noche Buena Mine
  • Mazapil, Zacatecas
    Mexico
  • Can't believe this is in the "Reduced " section! Really perhaps the best arsenopyrite specimen I've seen from Noche Buena Mine. Many silvery arseno crystals associated with milky quartz crystals, all on a matrix of coarse, dark brown, massive sphalerite. Displays perfectly!
Fluorite, Sphalerite, GalenaMexico, Various Minerals and Localities
  • Item #20921
  • Fluorite, Sphalerite, Galena
  • 9.5x6.5x3.1 cm
  • Largest Crystal Size: Fl 10, Sh 8mm, Ga 8mm
  • $60.00
  • Naica
  • Chihuahua
    Mexico
  • Naica is famous for "ore specimens" that look like this; a plate of sphalerite, galena and chalcopyrite crystals that are accented by very light green, gemmy, complex, fluorite crystals. Looks great!
Calcite, Sphalerite, PyriteMexico, Various Minerals and Localities
  • Item #20922
  • Calcite, Sphalerite, Pyrite
  • 15.1x11.0x5.7 cm
  • Largest Crystal Size: Ca 10mm, Sp 22mm, Py 4mm
  • $110.00
  • Naica
  • Chihuahua
    Mexico
  • The veins at Naica much have really been something to see! Here is a thick plate of sphalerite, pyrite and calcite crystals from one of those veins. Excellent!
WulfeniteMexico, Various Minerals and Localities
  • Item #21199
  • Wulfenite
  • 3.5x4.2x2.4 cm
  • Largest Crystal Size: 15mm
  • $45.00
  • Mina Ahumada
  • Los Lamentos, Chihuahua
    Mexico
  • A very nice cluster of "butterscotch"-like wulfenite crystals from this famous Mexican locality. Has some bruising and contacting. Looks great, though, on its acrylic base. t
Calcite, PyriteMexico, Various Minerals and Localities
  • Item #22088
  • Calcite, Pyrite
  • 10.0x7.0x4.0 cm
  • Largest Crystal Size: Ca 3mm, Py 25mm
  • $65.00
  • Naica
  • Chihuahua
    Mexico
  • An excellent specimen of these two gangue minerals from Naica. The sharp pyrite crystals underneath are partially covered by off-white scalenohedra of calcite. Displays very well! r
Danburite, CalciteMexico, Various Minerals and Localities
  • Item #22108
  • Danburite, Calcite
  • 14.1x5.4x4.0 cm
  • Largest Crystal Size: as above
  • $120.00
  • Charcas
  • San Luis Potosi
    Mexico
  • Wow! A VERY large, singly terminated danburite crystal from the place that produces some of the best and biggest crystals! This crystal has a perfect termination with interesting facets. The "front" is nicely striated, lustrous crystal faces and the "back" is totally covered with hexagonal, tabular calcite crystals. Excellent example of this mineral!
FluorapatiteMexico, Various Minerals and Localities
  • Item #29304
  • Fluorapatite
  • 9.2x4.5x7.8 cm
  • Largest Crystal Size: 26mm
  • $75.00
  • Cerro Demercado Mine
  • Durango
    Mexico
  • A magnificent example of fluorapatite in siliceous matrix from this famous locality. A couple of gemmy, yellow-green, sngly-terminated crystals are nicely exposed for display in this specimen. Some other crystal sections in the matrix, as well.
Calcite (optical)Mexico, Various Minerals and Localities
  • Item #29305
  • Calcite (optical)
  • 4.8x4.3x3.4 cm
  • Largest Crystal Size: as above
  • $40.00

  • Mexico
  • A cleavage fragment of the optically clear, "iceland spar" variety of calcite. Perfect for demonstrating double refraction!
Sphalerite, PyriteMexico, Various Minerals and Localities
  • Item #22901
  • Sphalerite, Pyrite
  • 4.0x2.8x2.4 cm
  • Largest Crystal Size: 12mm
  • $35.00
  • Naica
  • Chihuahua
    Mexico
  • Nice, small cluster of dark brown sphalerite crystals crowned with lots of golden pyrite crystals. Classic!
Sphalerite, PyriteMexico, Various Minerals and Localities
  • Item #22903
  • Sphalerite, Pyrite
  • 4.6x2.8x2.0 cm
  • Largest Crystal Size: 16mm
  • $35.00
  • Naica
  • Chihuahua
    Mexico
  • Here is a nice ssphalerite cluster! One larger, 16mm crystal sits on a mound of smaller crystals. A couple of pyrite "pyritohedra" are associated. Nice looking.
WulfeniteMexico, Various Minerals and Localities
  • Item #24418
  • Wulfenite
  • 5.2x4.8x3.7 cm
  • Largest Crystal Size: 11mm
  • $45.00
  • Los Lamentos Mine
  • Chihuahua
    Mexico
  • An 11mm thick-blocky-tabular, orange crystal of wulfenite sits perfectly, right in the middle of this matrix of botryoidal carbonate. The crystal has a couple of small chips out of it but still it is a striking specimen. Classic wulfenite locality!
AzuriteMexico, Various Minerals and Localities
  • Item #24422
  • Azurite
  • 4.2x3.2x30 cm
  • Largest Crystal Size: 2mm
  • $45.00
  • Zacatecas
    Mexico
  • The azurite mounds on this specimen are composed of many, closely packed deep blue, well formed azurite crystals. The matrix is white quartz which provides a good contrasting matrix colour. Sorry, only have Zacatecas as locality info. Looks great!
DanburiteMexico, Various Minerals and Localities
  • Item #24474
  • Danburite
  • 6.2x4.7x4.5 cm
  • Largest Crystal Size: 23mm
  • $65.00
  • Charcas
  • San Luis Potosi
    Mexico
  • A nice cluster of terminated danburite from one of the most famous localities for this mineral. Alittle irontinting give the specimen a bit more 3-D viewing. Displays well.
Wulfenite, Calcite, MimetiteMexico, Various Minerals and Localities
  • Item #24488
  • Wulfenite, Calcite, Mimetite
  • 9.4x6.2x4.3 cm
  • Largest Crystal Size: w-8mm
  • $85.00
  • San Carlos Mine
  • San Carlos, Chihuahua
    Mexico
  • There are a number of gemmy-orange, square-tabular, beveled wulfenite crystals scattered about on this matrix along with lots of white calcite crystals and a background of what I think is green, botryoidal mimetite in very tiny botryoids. Beautiful!
WulfeniteMexico, Various Minerals and Localities
  • Item #24630
  • Wulfenite
  • 7.4x5.2x3.2 cm
  • Largest Crystal Size: 5mm
  • $35.00
  • Ojuela Mine
  • Durango
    Mexico
  • Lots of thin, platy crystals of yellow wulfenite on this limonite matrix. Older specimen from this famous locality. s
PlattneriteMexico, Various Minerals and Localities
  • Item #24616
  • Plattnerite
  • 7.0x4.9x3.8 cm
  • Largest Crystal Size: 3mm
  • $35.00
  • Ojuela Mine
  • Mapimi, Durango
    Mexico
  • This specimen of hemimorphite crystals is coloured black by a sprinkling of tiny, black, plattnerite crystals. Good example! s
WulfeniteMexico, Various Minerals and Localities
  • Item #24682
  • Wulfenite
  • 5.0x3.3x1.5 cm
  • Largest Crystal Size: 12mm
  • $65.00
  • Los Lamentos
  • Chihuahua
    Mexico
  • A very nice cluster of wulfenite crystals of a different style than we normally see at Los Lamentos. s
Legrandite, AdamiteMexico, Various Minerals and Localities
  • Item #24951
  • Legrandite, Adamite
  • 10.0x5.0x3.4 cm
  • Largest Crystal Size: 8mm
  • $40.00
  • Ojuela Mine
  • Mapimi, Durango
    Mexico
  • Cavities in this limonite matrix have clusters of beautiful, light green adamite crystals. Perhaps the most famous locality for adamite!?
WulfeniteMexico, Various Minerals and Localities
  • Item #25070
  • Wulfenite
  • 5.0x4.9x3.0 cm
  • Largest Crystal Size: 22mm
  • $70.00
  • Los Lamentos
  • Chihuahua
    Mexico
  • This may be the largest wulfenite crystal that I have seen from this famous old location! It is a thick (REALLY THICK!), tablular, wulfenite crystal 22mm on edge, on matrix. Quite something!
Wulfenite, MimetiteMexico, Various Minerals and Localities
  • Item #25200
  • Wulfenite, Mimetite
  • 3.8x2.9x3.8 cm
  • Largest Crystal Size: Wu 8mm, Mi 4mm
  • $35.00
  • Magdalena

  • Sonora, Mexico
  • Several, nice, thin-bladed wulfenite crystals are perched on top of a large cluster of very yellow mimetite crystals. The mimetite is actually in sort of divergent crystal bundles. Both the wulfenite and the mimetite are lemon yellow on one side and tinted with brownish clay or iron oxides on the other side. Nice specimen from an unusual location!
Schorl, QuartzMexico, Various Minerals and Localities
  • Item #26304
  • Schorl, Quartz
  • 5.7x5.4x3.6 cm
  • Largest Crystal Size: 31mm
  • $75.00
  • Santa Cruz
  • Sonora
    Mexico
  • This specimen is a quartz crystal plate that is largely covered with very unusual sprays of acicular quartz crystals. Sort of branching aggregates of needle-like, dark-brown schorl crystals. There are several large sprays and a number of smaller. Unique! Displays well.
Chalcopyrite, Quartz, Calcite, TennantiteMexico, Various Minerals and Localities
  • Item #26492
  • Chalcopyrite, Quartz, Calcite, Tennantite
  • 7.7x6.7x6.0 cm
  • Largest Crystal Size: ch-16mm
  • $40.00
  • El Cobre
  • Zacatecas
    Mexico
  • A kind of floater aggregate of quartz crystals that is studded with black-coated chalcopyrite crystals, some of which have a tennantite overgrowth. As well, there are calcite scalenohedra on and in amongst the quartz crystals. Classic Mexican locality.
Wulfenite, MimetiteMexico, Various Minerals and Localities
  • Item #27314
  • Wulfenite, Mimetite
  • 13.2x6.8x4.8 cm
  • Largest Crystal Size: 5mm
  • $75.00
  • La Mina Ojeula
  • Mapimi, Durango
    Mexico
  • This limonite-mimetite matrix has lots of sharp. yellow elongated, blocky wulfenite crystals on the top of it, associated with green botryoids of mimetite. Displays well.
Wulfenite, MimetiteMexico, Various Minerals and Localities
  • Item #27315
  • Wulfenite, Mimetite
  • 13.6x9.4x3.4 cm
  • Largest Crystal Size: 9mm
  • $75.00
  • La Mina Ojeula
  • Mapimi, Durango
    Mexico
  • A number of elongated, blocky, yellow wulfenite crystals are scattered over the top of this limonite matrix and associated with smaller, green botryoids of mimetite. Sawn base. Very nice!
Wulfenite, MimetiteMexico, Various Minerals and Localities
  • Item #27316
  • Wulfenite, Mimetite
  • 8.2x6.5x3.4 cm
  • Largest Crystal Size: 8mm
  • $65.00
  • La Mina Ojeula
  • Mapimi, Durango
    Mexico
  • This concave vug has many very needle-like, yellow, wulfenite crystals, particularly around the lower part of the vug. Lots of green, spherical blobs of crystallized mimetite. Nice one!
Wulfenite, MimetiteMexico, Various Minerals and Localities
  • Item #27317
  • Wulfenite, Mimetite
  • 6.4x7.7x4.0 cm
  • Largest Crystal Size: 9mm
  • $75.00
  • La Mina Ojeula
  • Mapimi, Durango
    Mexico
  • Lots of yellow wulfenite crystals are clustered around the top of this limonite-matrix. The crystals are elongated prismatic, yellow crystals with a square cross-section. Sawn base. Great crystals!
DanburiteMexico, Various Minerals and Localities
  • Item #27650
  • Danburite
  • 6.5x3.0x2.0 cm
  • Largest Crystal Size: as above
  • $55.00
  • Charcas
  • San Luis Potosi
    Mexico
  • Wow! THIS is a gemmy one! This perfectly terminated crystal of danburite is colourless and very gemmy. You could cut nice gemstones out of parts of it! Perfect terminal faces and well striated on the prism faces. This is THE contemporary classic locality for danburite.
HydrozinciteMexico, Various Minerals and Localities
  • Item #27657
  • Hydrozincite
  • 5,4x4.1x2.5 cm
  • Largest Crystal Size: micro
  • $35.00
  • Mapimi
  • Durango
    Mexico
  • Various openings through this gossan matrix have linings and tufts of pure white, acicular crystals of hydrozincite. Very fluorescent. Nice example!
ScoroditeMexico, Various Minerals and Localities
  • Item #27663
  • Scorodite
  • 4.4x2.7x1.3 cm
  • Largest Crystal Size: 3mm
  • $35.00
  • La Mina Ojuela
  • Mapimi, Durango
    Mexico
  • Lots of colourless, sharp, sparkling crystals of scorodite on this limonite matrix. Less common mineral from the Ojuela Mine
DanburiteMexico, Various Minerals and Localities
  • Item #27890
  • Danburite
  • 7.8x7.8x5.2 cm
  • Largest Crystal Size: 67mm
  • $75.00
  • Charcas
  • San Luis Potosi
    Mexico
  • This specimen is a cluster of intelocking, very light pinkish danburite crystals. Interestingly, the crystals are coated on one side by tiny, sugary, colourless scalenohedra of calcite and on the other side, no calcite, just gemmy, smooth, striated light pink danburite crystals! Two specimens in one! Great looking piece!
Mimetite, GypsumMexico, Various Minerals and Localities
  • Item #29677
  • Mimetite, Gypsum
  • 12.5x10.5x6.0 cm
  • Largest Crystal Size: 4mm balls
  • $75.00
  • San Pedro Mine
  • San Luis Potosi
    Mexico
  • A large matrix of porous calcite with many openings covered with yellow balls of mimetite, which in turn have colourless, clear gypsum on them. Not all of them but a large percentage. Attractive, interesting piece!
ApatiteMexico, Various Minerals and Localities
  • Item #29474
  • Apatite
  • 7.9x4.1x2.3 cm
  • Largest Crystal Size: 19mm
  • $45.00
  • Cerro de Mercado
  • Durango
    Mexico
  • The Cerro de Mercado Mine is famous for these gemmy fluorapatite crystals embedded in a hard siliceous matrix. This specimen shows a gemmy-yellow crystal, well terminated exposed nicely on the siliceous matrix. Interesting occurrence and shows well!
Stibnite, CalciteMexico, Various Minerals and Localities
  • Item #28190
  • Stibnite, Calcite
  • 5.1x3.1x3.8 cm
  • Largest Crystal Size: 38mm
  • $40.00
  • Sombrerete
  • Zacatecas
    Mexico
  • This specimen shows three sprays of lustrous stibnite, enmeshed in a 3-D cluster. The crystals are long, bladed and well formed. The stibnite crystals are partially encrusted with sharp calcite crystals. Nice example from this famous old mining area!