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Scheelite crystal, fluorite, calcite - Yizhang, Linwu Co., Hunan Prov., China |
Scheelite crystal, fluorite, calcite - Yizhang, Linwu Co., Hunan Prov., China (longwave UV) |
Scheelite crystal, fluorite, calcite - Yizhang, Linwu Co., Hunan Prov., China (midrange UV) |
Scheelite crystal, fluorite, calcite - Yizhang, Linwu Co., Hunan Prov., China (shortwave UV) |
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Calcite - Lecanto Quarry, Citrus County, Florida |
Calcite - Lecanto Quarry, Citrus County, Florida (longwave UV) |
Calcite var. manganocalcite, quartz, pyrite - Huanzala, Peru |
Calcite var. manganocalcite, quartz, pyrite - Huanzala, Peru (longwave UV) |
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Fluorite, galena - Weardale, Blackdene Mine, Durham, England |
Fluorite, galena - Weardale, Blackdene Mine, Durham, England (shortwave UV) |
Adamite, limonite - Mapimi, Durango, Mexico |
Adamite, limonite - Mapimi, Durango, Mexico (midrange UV) |
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Fluorite - Xiang Hualin, Hunan Prov. China |
Fluorite - Xiang Hualin, Hunan Prov. China (midrange UV) |
Tremolite - New York |
Tremolite - New York (shortwave UV) |
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Calcite - Roaring Springs, PA - David's collection |
Calcite - Roaring Springs, PA (shortwave UV) |
Willemite, calcite - Franklin, NJ - David's collection |
Willemite, calcite - Franklin, NJ - David's collection (shortwave UV) |