Brucite - Cedar Hill Quarry, Lancaster Co., PA |
Brucite - Cedar Hill Quarry, Lancaster Co., PA (shortwave UV) |
Youngite (brecciated jasper with druzy quartz) - Guernsey, Wyoming |
Youngite (brecciated jasper with druzy quartz) - Guernsey, Wyoming (shortwave UV) |
Lapis lazuli (lazurite, calcite, pyrite) |
Lapis lazuli (lazurite, calcite, pyrite) (shortwave UV) |
Willemite - Arizona |
Willemite - Arizona (shortwave UV) |
Tremolite - Balmat, NY |
Tremolite - Balmat, NY (shortwave UV) |
Strontianite, calcite - Meckley Quarry, Mandata, PA |
Strontianite, calcite - Meckley Quarry, Mandata, PA (shortwave UV) |
Moss agate |
Moss agate (shortwave UV) |
Calcite cleavage fragment |
Calcite cleavage fragment (shortwave UV) |
Calcite |
Calcite (shortwave UV) |
Fluorite |
Fluorite (longwave UV) |