69g Optical Calcite Freeform TC2127 orange calcite Weight: 644 grams

Weight: 644 grams

895 gram Grape Agate Specimen

Mineral stand and putty not included

This is a completely natural cluster that is considered a "floater"

69g Optical Calcite Freeform TC2127 orange calcite Weight: 644 grams69g Optical Calcite Freeform Approx. Dimensions: 1x1x1. 5 inches Approx. Weight: 69 grams Locality: Maharashtra, India Optical calcite is also referred to as Iceland Spar because of its first discovery in Eskifjord, Iceland. It is typically colorless, and exhibits the optical phenomenon of double refraction where an object viewed through the calcite will appear doubled. Double refraction, or birefraction, is also called birefringence and is also