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Calcite Santa Eulalia, Mexico |
Calcite Santa Eulalia, Mexico (longwave UV) |
Calcite var. manganocalcite Medford Quarry, Carroll Co., MD |
Calcite var. manganocalcite Medford Quarry, Carroll Co., MD (midrange UV) |
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Ice cream opal Spencer, Idaho |
Ice cream opal Spencer, Idaho (longwave UV) |
Selenite Red River Floodway, Winnipeg, Manitoba, Canada |
Selenite Red River Floodway, Winnipeg, Manitoba, Canada (longwave UV) |
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Fluorite, calcite Kingston Trap Rock, Rocky Hill, NJ |
Fluorite, calcite Kingston Trap Rock, Rocky Hill, NJ (midrange UV) |
Ruby in matrix Mysore, India |
Ruby in matrix Mysore, India (longwave UV) |
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Willemite, calcite Sterling Hill Mine, Ogdensburg, NJ |
Willemite, calcite Sterling Hill Mine, Ogdensburg, NJ (longwave UV) |
Willemite, calcite Sterling Hill Mine, Ogdensburg, NJ (Calcite glows unusual bright pink - midrange UV) |
Willemite, calcite Sterling Hill Mine, Ogdensburg, NJ (Calcite glows dim deep red - shortwave UV) |