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LL657 - Chalcophyllite $ 250 Copper Stope, Majuba Hill Mine, Pershing Co., Nevada, USA small cabinet - 5.5 x 4 x 2 cm ![]() ![]() ![]() Blue green crystals of Chalcophyllite on matrix from the now defunct Majuba Hill Mine. Good crystals are present on both the front and back sides of the matrix.
LL678 - Amethyst $ 180 Las Vigas, Vera Cruz, Mexico small cabinet - 5.9 x 3.5 x 2.5 cm ![]() ![]() ![]() ![]() ![]() Pair of glassy, transparent Amethyst crystals. Complete all around and undamaged, simple elegance.
LL623 - Brochantite $ 600 Milpillas Mine, cuitaca, Sonora, Mexico miniature - 4.6 x 3.3 x 2.3 cm ![]() ![]() ![]() ![]() Jackstraw cluster of large Brochantite crystals. Main crystal is a large 4.6cm in length. The crystals have a bright, electric green coloration. This mine is now closed and no more will be coming out.
LL675 - Quartz with Glaucophane inclusions $ 120 Mount Tamalpais, Marin Co., California, USA small cabinet - 8 x 2 x 2 cm ![]() ![]() ![]() Double-terminated Quartz crystal with inclusions of blue/grey Glaucophane. These oddly shaped crystals were from a one time find about 10 years ago. Ex. Len Pisciotta collection.
LL635 - Adularia Sella, St. Gotthard, Switzerland small cabinet - 6.8 x 4.8 x 3 cm ![]() ![]() ![]() ![]() Translucent to transparent 2.5cm Adularia crystal on matrix. High quality, lustrous crystal out of the Chuck Trantham collection and comes with a very old label.
LL672 - Clinoclase $ 400 Copper Stope, Majuba Hill Mine, Pershing Co., Nevada, USA small cabinet - 7.5 x 5.5 x 4 cm ![]() ![]() ![]() Deep blue crystals of Clinoclase on matrix from the now defunct Majuba Hill Mine. The area of crystals is 4cm wide. An excellent example for the locality and of the species.
LL658 - Clinoclase on Cornubite Copper Stope, Majuba Hill Mine, Pershing Co., Nevada, USA small cabinet - 5.7 x 3.3 x 0.8 cm ![]() ![]() ![]() Deep blue crystals of Clinoclase over green Cornubite from the now defunct Majuba Hill Mine. Both the front and back have great crystals and display equally well.
LL680 - Amethyst $ 160 Las Vigas, Veracruz, Mexico small cabinet - 7.4 x 6 x 3.5 cm ![]() ![]() ![]() ![]() ![]() Thin shards of Quartz and silica rich matrix hosting beautiful, undamaged Amethyst crystals. Main crystal is 4cm and double-terminated. Ex. Chuck Trantham and Al McGuinness collections.
LL709 - Neptunite with Benitoite $ 275 Gem Mine, San Benito Co., California, USA thumbnail - 2.7 x 2 x 1.5 cm ![]() ![]() ![]() ![]() Well terminated Neptunite crystal with two attached Benitoite crystals.
LL659 - Clinoclase on Cornubite Copper Stope, Majuba Hill Mine, Pershing Co., Nevada, USA miniature - 4.7 x 3 x 2.5 cm ![]() ![]() ![]() Deep blue crystals of Clinoclase over green Cornubite from the now defunct Majuba Hill Mine. Both the front and back have great crystals.
LL738 - Benitoite $ 450 Gem Mine, San Benito Co., California, USA thumbnail - 2 x 1.8 x 1.3 cm ![]() ![]() ![]() ![]() Single Benitoite with 'textbook' form. Benitoite is the only mineral that crystallizes in the trigonal bipyramidal form, a form that was only hypothesized prior to it's discovery. Here you have a perfect example of the rare form (and a rare mineral). It looks almost like a crystal model. Thick and complete all around, with Crossite inclusions.
LL743 - Adamite $ 150 Mina Ojuela, Mapimi, Durango, Mexico thumbnail - 2.6 x 2 x 2 cm ![]() ![]() ![]() ![]() ![]() Two interconnected 'pinwheel' clusters of yellow Adamite. Undamaged.
LL730 - Gahnite rough and cut $ 350 Kagoro, Kaduna State, Nigeria thumbnail - 0.6 x 0.6 x 0.6 cm ![]() ![]() ![]() Rough and cut set of transparent blue Gahnite. Gahnite is the zinc rich end member and one of the rarer species in the Spinel group of minerals. The crystal is a complete octahedron with one tiny chip on one tip, otherwise perfect and translucent to transparent internally. The gemstone is 4.5mm wide. These were first discovered in 2001 and are found mostly of industrial quality. Though they don't get very large, the color is spectacular. The GIA has written a nice article about these crystals published in Gems & Gemology, Fall 2019, Vol. 55, No. 3.
LL735 - Bournonite with Sphalerite $ 375 Pachapaqui mining district, Bolognesi Province, Áncash, Peru large cabinet - 17 x 13 x 6 cm ![]() ![]() ![]() ![]() ![]() Large specimen of interlocking and individual 'cogwheels' of Bournonite associated with black Sphalerite crystals and minor amounts of Pyrite and Quartz crystals. A very rich sample loaded with Bournonite. Ex. Chuck Trantham collection.
LL811 - Cuprian Adamite $ 900 Mina Ojuela, Mapimi, Durango, Mexico miniature - 4.5 x 4 x 3.5 cm ![]() ![]() ![]() ![]() Limonite vug filled with colorless Calcite and green Cuprian Adamite crystals. This is a particularly fine example sporting large, undamaged crystals of great beauty. The crystal group at the front left is 2cm in size, with an individual crystal 1.2cm in size. The vug itself is lined with black Plattnerite which provides a stunning backdrop to the green and white crystals.
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