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 21% or multiply by 0.79.

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

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!	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!	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!	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.
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!	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!	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!	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!
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!	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!	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.	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.
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!	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	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	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.
Item #22092 Danburite 7.9x4.5x2.8 cm Largest Crystal Size: 79mm $85.00 Charcas San Luis Potosi Mexico Several, elongate, prismatic, white-colourless, partially gemmy danburite crystals form one of the best localities. Well terminated, sharp cluster! r	Item #22093 Danburite 8.8x4.7x2.4 cm Largest Crystal Size: as above $140.00 Charcas San Luis Potosi Mexico A VERY large crystal of danburite, that is just danburite - beautiful single, well terminated crystal. Wow! Excellent example of this mineral! r	Item #22108 Danburite, Calcite 14.1x5.4x4.0 cm Largest Crystal Size: as above $140.00 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!	Item #22113 Vanadinite, var. Endlichite 13.0x6.4x3.5 cm Largest Crystal Size: 3mm $65.00 Erupcion Mine Los Lamentos, Ahumada, Chihuahua Mexico This matrix of undulating, colourless calcite crystals is almost totally covered with brown, pointy vanadinite crystals. It is the arsenic-rich variety termed endlichite. Some bruising but lots of great crystals! Lots! Sits perfectly for display.
Item #22766 Mimetite 9.3x5.2x2.6 cm Largest Crystal Size: n/a $55.00 Ojuela Mine Mapimi Mexico Nice plate of radiating, sort of botryoidal groups of yellow mimetite. Classic! R	Item #22900 Sphalerite, Quartz 8.0x8.5x7.4 cm Largest Crystal Size: 21mm $85.00 Naica Chihuahua Mexico A cluster of black sphalerite crystals partially covered with small milky quartz crystals and some small, tiny pyrite crystals. Looks great from several angles. Stands well for display!	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!	Item #22904 Sphalerite, Pyrite 2.6x3.4x2.4 cm Largest Crystal Size: 16mm $35.00 Naica Chihuahua Mexico A nice mound of black sphalerite crystals encrusted with sparkling pyrite crystals. Good looking specimen of this ore mineral!
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.	Item #22933 Grossular 6.4x4.4x4.2 cm Largest Crystal Size: as above $55.00 Sierra de Cruces Coahuila Mexico A large grossular crystal from the famous locality near Sierra de Cruces. The crystal is a simple dodecahedron with a light green colouration. One point where it was attached to another smaller crystal and a small part of the crystal is repaired. Nice smooth crystal. R