O7 - Fluorite - Rogerly, England fluorescent minerals O57 chalcedony & calcite from

O57 chalcedony & calcite from Crawford

UV blocking safety glasses block UV rays and provides eye protection when chipping away at rock and boulders

Special UV reflector to redirect maximum UV out the optical filter

Unique two faced specimen with red calcite and green willemite

Specimens come in 2 1/2 to 3 1/2 inches in size

O7 - Fluorite - Rogerly, England fluorescent minerals O57 chalcedony & calcite fromFluorite Rogerly, England Deep purple response under longwave and shortwave UV. Rogerly flluorite crystals are highly sought after from England. Crystals can be bright green in daylight if a rust remover is used to remove the rust film from the specimen. Does not affect the fluorescent response. 1 pound 12 ounces Approx. 5" x 4. 5"