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$1,500.00 Bertrandite (superb quality) / Locality - Golconda Mine, Governador Valadares, Minas Gerais, Brazil $1,500.00 Bertrandite (superb quality) / Locality - Golconda Mine, Governador Valadares, Minas Gerais, Brazil $550.00 Calcite (variety: "Manganoan") / Locality - Krushev Dol deposit, Krushev Dol mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria $125.00 Vanadinite / Locality - Mibladen, Midelt, Khenifra Province, Meknes-Tafilalet Region, Morocco $500.00 Kolwezite (rare) with Cobaltoan Calcite / Locality - Musonoi Mine, Kolwezi, Katanga, Democratic Republic of Congo (Type Locality) $350.00 Fluorapatite on Albite / Locality - Sapo mine, Ferruginha, Conselheiro Pena, Minas Gerais, Brazil $250.00 Rhodochrosite / Locality - N'Chwaning I Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa $700.00 Calcite / Locality - Bisbee, Cochise County, Arizona $250.00 Descloizite (fine crystals) / Locality - Otavi, Otjozondjupa Region, Namibia $1,200.00 Copper "Skull" / Locality - Centennial Mine, Houghton County, Michigan $2,250.00 Petrified Wood (incredibly rare color) with Banded Agate / Locality: Petrified Forest, Gokwe South, Midlands, Zimbabwe $950.00 Petrified Wood (incredibly rare color) / Locality: Petrified Forest, Gokwe South, Midlands, Zimbabwe $1,800.00 Petrified Wood (incredibly rare color) with Banded Agate / Locality - Petrified Forest, Gokwe South, Midlands, Zimbabwe $250.00 Uvarovite / Locality: Saranovskii Mine (Saranovskoe), Gornozavodskii area, Permskaya Oblast, Urals Region, Russia (TYPE LOCALITY) $225.00 Barite ("phantom" crystals) / Locality - 121 Stope, 1250 Level, Black Cloud Mine, Leadville, Lake County, Colorado $250.00 Quartz "cast" after Calcite / Locality - Crystal Cave, Canyon Creek, Ouray County, Colorado $1,250.00 Spinel / (large "floater" crystal) / Locality - Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar (Burma) $350.00 Opal-AN (Hyalite Opal) / (fluorescent) / Locality - Zacatecas, Mexico $550.00 Opal replacing Wood / Locality - Java, Indonesia $700.00 Opal replacing Wood / Locality - Java, Indonesia