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dougbank: 1902-3? Calcite-Chalcedny Flash
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dougbank: 1902-3? Calcite-Chalcedny SW UV
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dougbank: 1902-32 Calcite-Chalcedny UV
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dougbank: 1902-32 Calcite-Chalcedny Flash
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dougbank: 1902-38 Calcite-Chalcedny Phosphorescence
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dougbank: 1902-38 Calcite-Chalcedny SW UV
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dougbank: 1902-38 Calcite-Chalcedny Flash
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dougbank: Agrellite, Calcite and Eudialyte
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dougbank: Agrellite, Calcite and Eudialyte
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dougbank: Barite Calcite on Limonite SW UV
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dougbank: Barite Calcite on Limonite Flash
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dougbank: Barite and Cerussite from Morocco