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 19% or multiply by 0.81.

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

Sphalerite, PyriteMexico, Various Minerals and Localities
  • Item #4246
  • Sphalerite, Pyrite
  • 4.5x2.8x1.8 cm
  • Largest Crystal Size: 17mm
  • $25.00
  • Naica
  • Chihuahua
    Mexico
  • A cluster of sphalerite crystals with a 17mm crystal sitting up nicely in the centre. A nice pyritohedral pyrite crystal is positioned just in front of the sphalerite. Nice looking!
Sphalerite, PyriteMexico, Various Minerals and Localities
  • Item #4247
  • Sphalerite, Pyrite
  • 3.6x2.9x3.1 cm
  • Largest Crystal Size: 17mm
  • $25.00
  • Naica
  • Chihuahua
    Mexico
  • A very attractive cluster of sphalerite crystals accented by duses of 1-2mm pyrite crystals that have been directionally applied to the sides of the sphlaerites. The sphalerite crystals are black with light striations and are not crazily twinned like we often see. Nice!
SphaleriteMexico, Various Minerals and Localities
  • Item #4251
  • Sphalerite
  • 4.1x2.3x2.7 cm
  • Largest Crystal Size: 30mm
  • $25.00
  • Naica
  • Chihuahua
    Mexico
  • This is a small but attractive and interesting piece. It consists of one large crystal with a stack of pyrite and smaller sphalerite crystals piled up on top of it. Looks Great!
Sphalerite, QuartzMexico, Various Minerals and Localities
  • Item #4266
  • Sphalerite, Quartz
  • 8.3x6.5x7.0 cm
  • Largest Crystal Size: 15mm
  • $45.00
  • Naica
  • Chihuahua
    Mexico
  • A mound of black sphalerite crystals with lots of small, prismatic, milky quartz crystals scattered all over them. I've taken pictures from a couple of angles on this one.
Galena, QuartzMexico, Various Minerals and Localities
  • Item #4272
  • Galena, Quartz
  • 5.5x4.0x2.5 cm
  • Largest Crystal Size: 10mm
  • $30.00
  • Naica
  • Chihuahua
    Mexico
  • This specimen is mostly composed of well formed galena crystals covering massive pyrite and associated with some small quartz crystals. Many of the galena crystals are well-formed spinel-law twins while some are simple cube-octahedra. Nice looking specimen.
Pyrite ps. after PyrrhotiteMexico, Various Minerals and Localities
  • Item #4325
  • Pyrite ps. after Pyrrhotite
  • 9.3x7.8x7.3 cm
  • Largest Crystal Size: 23mm
  • $55.00
  • Zacatecas

  • Mexico
  • A handsome specimen consisting of sub-parallel groups of pyrrhotite crystals replaced by pyrite along with some black sphalerites and well formed crystals of pyrite. Some creamy calcite crystals, as well. The front of the specimen is tipped up at 45 degrees from horizontal for perfect display.
MimetiteMexico, Various Minerals and Localities
  • Item #8404
  • Mimetite
  • 5.8x4.9x4.6 cm
  • Largest Crystal Size: n/a
  • $90.00
  • San Antonio Mine
  • Santa Eulalia
    Mexico
  • A superb cluster of botryoidal balls of beigy mimetite. The balls are composed of tightly packed crystals of mimetite and are very good quality. Classic. Displays well.
Danburite, CalciteMexico, Various Minerals and Localities
  • Item #13416
  • Danburite, Calcite
  • 9.0x8.1x5.6 cm
  • Largest Crystal Size: d-36mm, c-41mm
  • $75.00
  • Mina Aurora
  • Charcas, San Luis Potosi
    Mexico
  • A very nice cluster of long, slender danburite crystals with a partial coating of white calcite. As well, there is a great-looking, scalenohedral calcite crystal on the lower left side, as well. Great looking specimen form a classic Mexican locality.
HemimorphiteMexico, Various Minerals and Localities
  • Item #12042
  • Hemimorphite
  • 11.5x8.2x5.2 cm
  • Largest Crystal Size: 15mm
  • $75.00
  • La Mina Ojuela
  • Mapimi, Durango
    Mexico
  • A beautiful specimen of hematite-stained hemimorphite crystals bristling out of a concave area on this limonite matrix. Looks great!
Mimetite, CalciteMexico, Various Minerals and Localities
  • Item #12043
  • Mimetite, Calcite
  • 6.7x5.6x1.0 cm
  • Largest Crystal Size: n/a
  • $35.00
  • Chihuahua

  • Mexico
  • This thin plate of calcite has a partial coating of yellow-orange botryoidal mimetite fully or partially covering the colourless and white calcite crystals. Classic!
Mimetite, CalciteMexico, Various Minerals and Localities
  • Item #12044
  • Mimetite, Calcite
  • 6.2x4.8x2.0 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Chihuahua

  • Mexico
  • This thin plate of colourless calcite crystals has about a 50% coverage by yellow-orange botryoidal mimetite. Nice!
Galena, Pyrite, CalciteMexico, Various Minerals and Localities
  • Item #15053
  • Galena, Pyrite, Calcite
  • 5.5x3.7x3.3 cm
  • Largest Crystal Size: g-13mm
  • $35.00
  • Naica
  • Chihushua
    Mexico
  • Several very sharp, lustrous galena crystals are well positioned on a matrix of small calcite crystals associated with pyrite crystals. Looks good!
Galena, PyriteMexico, Various Minerals and Localities
  • Item #15055
  • Galena, Pyrite
  • 4.4x2.7x2.2 cm
  • Largest Crystal Size: 15mm
  • $30.00
  • Naica
  • Chihuahua
    Mexico
  • A 15mm , lustrous, well formed cube-octahedron of galena sits atop this mound of small pyrite and galena crystals. Nice!
Boulangerite. Pyrite, SphaleriteMexico, Various Minerals and Localities
  • Item #15064
  • Boulangerite. Pyrite, Sphalerite
  • 7.1x3.5x5.0 cm
  • Largest Crystal Size: j-9mm
  • $65.00
  • Noche Bueno
  • Zacatecas
    Mexico
  • A very nice specimen of these oft-associated minerals. The piece has a vug on the left side that sports a couple of clusters of hair-like boulangerite crystals amongst dark brown sphalerite and golden pyrite crystals.
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!
WulfeniteMexico, Various Minerals and Localities
  • Item #18961
  • Wulfenite
  • 2.9x2.3x1.6 cm
  • Largest Crystal Size: 12mm
  • $65.00
  • Los Lamentos Mine
  • Chihuahua
    Mexico
  • A really nice, lustrous, deep orange, thumbnail-sized cluster of wulfenite crystals. Classic! t
Calcite, HemimorphiteMexico, Various Minerals and Localities
  • Item #16780
  • Calcite, Hemimorphite
  • 7.7x4.9x2.7 cm
  • Largest Crystal Size: c-15mm, h-4mm
  • $25.00
  • Santa Eulalia
  • Chihuahua
    Mexico
  • A nice cluster of very white, slightly iron-tinted calcite crystals with some small, clear, bladed hemimorphite crystals here and there. Nice!
AdamiteMexico, Various Minerals and Localities
  • Item #16792
  • Adamite
  • 5.7x4.4x4.4 cm
  • Largest Crystal Size: 8mm
  • $45.00
  • Ojuela Mine
  • Mapimi
    Mexico
  • The shallow vug on the top of this specimen is largely lined with light green composite adamite crystals. Classic!
Mimetite, CalciteMexico, Various Minerals and Localities
  • Item #16757
  • Mimetite, Calcite
  • 5.6x4.0x3.6 cm
  • Largest Crystal Size: 8mm mounds
  • $75.00
  • El Potosi Mine
  • Santa Eulalia, Chihuahua
    Mexico
  • Here is a Mexican classic! This piece features mounds of sort of botryoidal mimetite composed of tiny yellowish mimetite crystals. As well, there are sharp calcite crystals on the back and mixed in between the mimetite mounds. Old Western Minerals/Schlepp label accompanies the specimen. Displays very well.
CalciteMexico, Various Minerals and Localities
  • Item #16919
  • Calcite
  • 11.5x8.7x5.7 cm
  • Largest Crystal Size: 52mm
  • $120.00
  • Santa Eulalia
  • Chihuahua
    Mexico
  • What a great specimen of Calcite! This piece consists entirely of branching crystals of pure-white calcitecrystals. I guess you'd call it dendritic! From a famous calcite crystal locality!
Gypsum, var. SeleniteMexico, Various Minerals and Localities
  • Item #16921
  • Gypsum, var. Selenite
  • 12.5x5.8x2.4 cm
  • Largest Crystal Size: as above
  • $55.00
  • Naica Mine
  • Chihuahua
    Mexico
  • A very nice, elongated twin crystal of gypsum from one of the most famous "selenite" localities in the world. Very little bruising. Classic!
Mimetite, CalciteMexico, Various Minerals and Localities
  • Item #19879
  • Mimetite, Calcite
  • 19.0x11.5x4.4 cm
  • Largest Crystal Size: 6mm balls
  • $140.00
  • Santa Eulalia
  • Chihuahua
    Mexico
  • A large plate of calcite that is peppered with rounded aggregates of orange mimetite. Great looking specimen!
DanburiteMexico, Various Minerals and Localities
  • Item #20266
  • Danburite
  • 13,5x11.5x10.0 cm
  • Largest Crystal Size: 85mm
  • $225.00
  • Charcas
  • San Luis Potosi
    Mexico
  • A rather large cluster of colourless-white danburite crystals from one of the best localities. Ther are several very large crystals on top and many smaller crystals around the bottom. The cluster is not complete but still VERY impressive. A small cluster of arsenopyrite crystals on the back. Displays well!
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!
HemimorphiteMexico, Various Minerals and Localities
  • Item #20913
  • Hemimorphite
  • 11.9x8.7x4.9 cm
  • Largest Crystal Size: 8mm
  • $55.00
  • Ojuela Mine
  • Mapimi, Durango
    Mexico
  • Really nice cluster of hemimorphite from this world famous, prolific producer of secondary mineral specimens. The hemimorphite crystals are colourless, transparent, bladed crystals. Some white calcite rhombs suspended in the hemimorphites. Nice small cabinet specimen.
Sphalerite, Quartz, CalciteMexico, Various Minerals and Localities
  • Item #20914
  • Sphalerite, Quartz, Calcite
  • 12.5x11.6x4.9 cm
  • Largest Crystal Size: Sp 20mm, Qu 11mm, Ca 9mm
  • $140.00
  • Naica
  • Chihuahua
    Mexico
  • A really nice plate of dark brown, lustrous, sphalerite crystals largely covered with beige quartz crystals and some white rhombs of calcite.
GypsumMexico, Various Minerals and Localities
  • Item #20988
  • Gypsum
  • 18.2x12.0x6.0 cm
  • Largest Crystal Size: as above
  • $130.00
  • Naica
  • Chihuahua
    Mexico
  • This specimen is one, large parallel growth selenite crystal with multiple, terminations. There is some rock attached to the bottom left hand corner. Water clear and very lustrous. A little abrasion but, as you can see, not very noticeable. Gorgeous example!
PyrargyriteMexico, Various Minerals and Localities
  • Item #21155
  • Pyrargyrite
  • 2.3x2.1x1.2 cm
  • Largest Crystal Size: 3mm
  • $85.00
  • San Luis Mine
  • Fresnillo, Zacatecas
    Mexico
  • Very good cluster of trigonal pyrargyrite crystals with just a little quartz on the back. The crystals are prismatic-hexagonal with rhombohedral terminations. Some damage but lots of good crystals! t
Azurite, MalachiteMexico, Various Minerals and Localities
  • Item #21193
  • Azurite, Malachite
  • 10.7x8.0x5.4 cm
  • Largest Crystal Size: n/a
  • $120.00
  • Zacatecas

  • Mexico
  • Really great looking, old-time specimen from this well oxidized part of the world! It is a mound of deep blue, small azurite crystals that sparkle in association with green, botryoidal malachite. Displays extremely well.
WulfeniteMexico, Various Minerals and Localities
  • Item #21256
  • Wulfenite
  • 9.5x6.5x3.5 cm
  • Largest Crystal Size: 5mm
  • $75.00
  • Ojuela Mine
  • Mapimi, Durango
    Mexico
  • A superb example of a different habit of wulfenite than we have seen recently from the Ojuela Mine. The crystals appear like sandwiches, lighter, opaque, yellow-green outer pinacoid zone with a darker, less opaque middle zone. In reality, the crystals are a little darker yellow-green colour than featured in the pictures. Great looking specimen with no discernable damage. Displays perfectly! R
GrossularMexico, Various Minerals and Localities
  • Item #21288
  • Grossular
  • 13.0x11.1x5.2 cm
  • Largest Crystal Size: 14mm
  • $85.00
  • Coahuilla

  • Mexico
  • What colour for a garnet! Half of this specimen is covered by grossular crystals that have a peculiar, hot-pink colouration. Some of the crystals are rough dodecahedra while others are very sharp dodecahedra.