Calcite on Fluorite
Size: 7.5 x 7.2 x 6.5 cm
Locality: Rosiclare Level, Minerva No. 1 Mine, Cave-in-Rock Sub-District, Hardin Co., Illinois, USA
Adamite on Goethite matrix- Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico
Liddicoatite Tourmaline, Madagascar
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Finished black tourmaline
Rough Rhodonite
Tourmaline on Quartz - Cruzeiro Mine, Doce Valley, Minas Gerais, Brazil
Wavellite - DeLinde Wavellite Mine, Arkansas
Tourmaline - Cruzeiro Mine, São José da Safira, Minas Gerais, Brazil
Pseudocubic Wulfenite crystals on a druse of micro-Wulfenite crystals which formed on an unusual greenish-yellow Arsendescloizite(?) on a dark Limestone matrix - Ojuela Mine, Mapimi, Durango, Mexico
Cobaltoan Calcite on Malachite covered matrix - Kamoto Principal Mine, Kamoto, Kolwezi District, Katanga (Shaba), Congo