Another Variety - Mineral 3

ACC Standard Mineral 6a - Icelandic Spar Calcite by Sean C Murphy 2020.

Specimen dimensions: 1⅜ x 1⅛ x 1⅛ inches ( 36x29x28mm)

Specimen weight: 2 ⅝ ounces (77 grams)

Collection: Round Rock Campus

Provenance: Creel, Chihuahua, Mexico


For reference: the U.S. penny is 0.75 inches [19.05 mm] in diameter.