David K. Joyce

REDUCED -Sulphides, Sulphosalts, 40 Percent Off!

Deduct 40% from the listed price and an additional 20% for payment in US$!

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

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Item #18856 Andorite, Zinkenite 3.8x2.4x0.7 cm Largest Crystal Size: As above $120.00 San Jose Mine Oruro City, Cercado Oruro, Bolivia This cluster of zinkenite crystals also has a couple of nice andorite crystals attached to the zinkenite. Classic combination from Oruro!	Item #11812 Arsenic 8.7x8.3x2.5 cm Largest Crystal Size: n/a $95.00 Quiruvilca Mine Santiago de Chuco, La Libertad Peru This plate of botryoidal arsenic has a coating of, I think, arsenic oxides, on the top surface. Some bright patches of arsenic peeking through.	Item #11672 Seligmannite, Galena, Tetrahedrite, Realgar 8.4x7.6x6.0 cm Largest Crystal Size: g-mm $85.00 La Palomo Mine Castrovirreyna, Huancavelica Peru Lots of sharp, tiny crystals of seligmannite on and between well formed crystals of galena, along with tetrahedrite and quartz crystals. A little bit of bright red realgar for contrast. Shows well.	Item #11693 Seligmannite, Galena, Tetrahedrite, Orpiment, Quartzr 6.7x5.7x3.0 cm Largest Crystal Size: g-22mm, s-micro $60.00 La Palomo Mine Castrovirreyna, Huancavelica Peru A cluster of cube-octahedral crystals of galena sprinkled with, a thousand, tiny, sparkling crystals of seligmannite. There is also one crude tetrahedrite crystal on the piece, as well as patches of tiny globular orpiment. Interesting!
Item #11696 Galena, Seligmannite 8.6x5.2x3.2 cm Largest Crystal Size: g-53mm, s-1mm $65.00 La Palomo Mine Castrovirreyna, Huancavelica Peru A couple of spinel-law twinned galena crystals dusted with bright seligmannite crystals and a snow-like covering of small, white quartz crystals. Looks good!	Item #11726 Tetrahedrite, Quartz 5.7x4.9x3.7 cm Largest Crystal Size: t-28mm $65.00 Casapalca Mine Huarochiri, Lima Peru Great looking example of this mineral. A stack of sharp tetrahedra of tetrahedrite piled up on quartz and sphalerite crystals. Very slight bruising. The tetrahedrite crystals have, in places, a slight veneer of chalcopyrite. Looks great-displays well.	Item #11729 Seligmannite, Galena, Quartz 5.4x5.3x2.2 cm Largest Crystal Size: g-15mm, s-1mm $40.00 La Palomo Mine Castrovirreyna, Huancavelica Peru The galena crystals on this plate are richly covered with sparkling, prisms of seligmannite.	Item #15495 Sphalerite, Fluorite 6.8x6.1x3.0 cm Largest Crystal Size: as above $75.00 Elmwood Mine Smith Co. Tennessee, USA This is one big, complex crystal of sphalerite, typical of the sphalerite from the Elmwood Mine. The faces are very lustrous and, together with the complexity, makes it very difficult to obtain a flattering photograph. One single, deep purple fluorite cube is attached, as well. This photo does not do this specimen justice! It is a great-looking specimen that shows well.
Item #16521 Proustite, Xanthoconite, Pearcite 5.8x4.8x3.8 cm Largest Crystal Size: micro $45.00 Imiter Mine Djebel Saghro, Ouarzazate Morocco The matrix of this specimen is a silver impregnated fragment of quartz with a number of vugs and open spaces in it. In the spaces are a variety of minerals including proustite, pearcite, xanthoconite, etc. Some nice crystals1	Item #17544 Bournonite 6.2x5.0x2.5 cm Largest Crystal Size: 21mm $140.00 Machacamarca Mine Machacamarca Cornelio Saavedra, Potosi, Bolivia This specimen sports several tabular bournonite crystals on a siderite and pyrite matrix. The bournonite crystals have beveled sides with prominent striations. Looks good!	Item #17537 Bournonite 5.7x4.5x4.4 cm Largest Crystal Size: 26mm $80.00 Machacamarca Mine Machacamarca Cornelio Saavedra, Potosi, Bolivia A fairly sharp, cluster of bournonite crystals is attached to one end of this pourous quartz matrix. The cluster is composed of several, slightly divergent bournonite crystals with beveled edges. A little damage on the back not noticeable from the front.	Item #17539 Bournonite 6.9x5.3x2.7 cm Largest Crystal Size: 18mm $65.00 Machacamarca Mine Machacamarca Cornelio Saavedra, Potosi, Bolivia There are a couple of smaller, tabular bournonite crystals at one end of this quartz matrix. The crystals have some damage which is not apparent right away. A reasonable priced example.
Item #19265 Stibnite 7.1x3.5x2.7 cm Largest Crystal Size: 28mm $35.00 Quiruvilca Mine Santiago de Chuco, La Libertad Peru A cluster of intergrown, silvery-metallic stibnite crystals from this classic locality.	Item #19954 Acanthite ps. Argentite 3.4x2.9x1.3 cm Largest Crystal Size: 12mm $450.00 Himmelsfurt Mine Freiberg, Saxony Germany This "thumbnail-sized" specimen shows a classic, elongated silver sulphide crystal protruding from calcite crystals on matrix. From one of the most classic localities for this mineral.	Item #19962 Andorite, Cassiterite 5.9x5.8x4.0 cm Largest Crystal Size: 12mm $750.00 Mina San Jose Oruro Bolivia A super-sharp, highly lustrous andorite crystal is exposed in an opening in this mostly cassiterite matrix. The andorite is nicely terminated. The cassiterite matrix is interesting in that it is sort of "honey-combed" and composed of thousands of tiny, almost acicular cassiterite crystals with a few tiny pyrite crystals. Very nice andorite 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.