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K844 - Prehnite $ 300 Merelani Hills, Arusha, Tanzania miniature - 4 x 3.5 x 2 cm ![]() ![]() ![]() ![]() Gorgeous clean and translucent to transparent Prehnite rosette. There is a contact at the base otherwise it's undamaged with a smooth, flat backside where is was likely plucked off a Calcite crystal.
D587 - Andradite var. Topazolite $ 150 Yellow Cat Mine, San Benito Co., California, USA small cabinet - 6 x 4 x 2.5 cm ![]() ![]() ![]() ![]() Bright and lustrous golden colored Topazolite crystals and green Clinochlore on matrix. The Topazolite crystals reach 3mm and are translucent. Found near the Benitoite Gem Mine.
CT604 - Calcite, Barite on Fluorite $ 200 Minerva Mine, Cave-in-Rock, Hardin Co., Illinois, USA cabinet - 15 x 6 x 4 cm ![]() ![]() ![]() ![]() ![]() ![]() ![]() Large specimen of purple and yellow Fluorite crystals that are covered on top and sides by white bladed Barite crystals and yellow scalenohedral Calcite crystals. In good condition, nothing but crystals everywhere.
D555 - Tsavorite $ 120 Merelani Hills, Arusha, Tanzania thumbnail - 1.4 x 1 x 0.7 cm ![]() ![]() ![]() ![]() Gemmy single Tsavorite (Grossular) crystal with Graphite. Excellent color and undamaged.
D580 - Tsavorite, Graphite, Calcite, Diopside, Pyrite $ 300 Merelani Hills, Arusha, Tanzania miniature - 3.5 x 3.3 x 2.4 cm ![]() ![]() ![]() ![]() ![]() Classic Merelani combination of elongated Tsavorite (Grossular) crystals, white Calcite, Diopside, Pyrite and well formed Graphite crystals. Excellent display and study piece for the locality.
D489 - Torbernite $ 120 Unknown miniature - 4.5 x 4 x 2.5 cm ![]() ![]() ![]() Platy green crystals of Torbernite on matrix. Ex. Chuck Trantham collection without any labels.
D720 - Copper $ 475 Hekla Mine, Houghton Co., Michigan, USA small cabinet - 7.5 x 6.5 x 3.6 cm ![]() ![]() ![]() ![]() ![]() Well crystallized Copper specimen with a grouping of good crystals rising up off larger, thick crystals at the base.
CT685 - Quartz var. Grape Agate $ 350 Mamuju, Sulawesi, Indonesia large cabinet - 20 x 10 x 8 cm ![]() ![]() ![]() ![]() Large cluster of interconnected spheres of purple Quartz known as Grape Agate. I understand these are considered to be Amethyst. For my taste, the best Grape Agates need to have both deep purple color and sparkling luster, such as this large example.
CT656 - Heulandite with Mordenite $ 150 Amudika River, near Mirny, Yakutia, Siberia, Russia miniature - 4.2 x 3 x 2.2 cm ![]() ![]() ![]() Bi-colored Heulandite crystal with Mordenite. A fine quality double-terminated Heulandite 2cm wide. Hard to find old specimen from Chuck Trantham personal collection.
CT658 - Heulandite with Mordenite, Calcite $ 150 Amudika River, near Mirny, Yakutia, Siberia, Russia miniature - 3.5 x 3 x 2 cm ![]() ![]() ![]() ![]() Bi-colored Heulandite crystal with Mordenite and Calcite crystals. A fine quality double-terminated Heulandite 2.2cm wide. Hard to find old specimen from Chuck Trantham personal collection.
B958 - Gold $ 1500 Homestake Mine, Lead, Lawrence Co., South Dakota, USA miniature - 4.8 x 2.5 x 1.8 cm ![]() ![]() ![]() ![]() ![]() ![]() Discovered in 1875, the Homestake Mine was a deep underground gold mine that operated until 2002. For a period, it was the largest and deepest gold mine in North America. The mine produced more than forty million troy ounces of gold during its lifetime. Despite this, Gold specimens from this mine are scarce. This specimen features multiple areas of exposed Gold in a Quartz matrix along with what are likely Arsenopyrite crystals (two old labels, one from the Hauck collection and one from Kristalle, indicate the other mineral is Sylvanite). The Gold extends all the way through the Quartz in areas. Uncommon, hard to find USA Gold specimen.
CT670 - Calcite on Natrolite $ 180 Springfield Butte, Lane Co., Oregon, USA small cabinet - 7 x 4 x 3 cm ![]() ![]() ![]() ![]() ![]() Elongated scalenohedral Calcite crystals atop white needles of Natrolite. Ex. Chuck Trantham collection and a beautiful example of a northwest USA zeolite, one of Chuck's specialties due to his geological work in the area. This was self collected by Chuck in 1962. Though he collected hundreds of specimens, this one was considered fine enough by Chuck to be saved in in his personal collection and comes with his hand written label.
CT650 - Liddicoatite $ 1800 Anjanabonoina, Madagascar cabinet - 12.2 x 9 x 0.4 cm ![]() ![]() ![]() Cut and polished slice of Liddicoatite (a species of Tourmaline) from old finds in Madagascar. Cut parallel to the C-axis, the slice reveals the colorful interior of what would have appeared to otherwise be a dark crystal. Triangular color zoning of greens, blues, and purple. Well polished on both sides, weighs 87.09 grams.
CT657 - Thomasite $ 120 Amudika River, near Mirny, Yakutia, Siberia, Russia thumbnail - 2.5 x 2 x 1.7 cm ![]() ![]() ![]() ![]() Cluster of pink Thomasite from an obscure Russian locality. Ex. Chuck Trantham collection acquired by Chuck in 1992.
CT659 - Thomasite $ 120 Amudika River, near Mirny, Yakutia, Siberia, Russia miniature - 3.2 x 2.2 x 1.8 cm ![]() ![]() ![]() ![]() Cluster of pink Thomasite from an obscure Russian locality. Ex. Chuck Trantham collection acquired by Chuck in 1992.
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