another Example - Mineral 20

Serpentine specimen for virtual mineral identification, photograph by Sean  C. Murphy, 2020.

Specimen dimensions: small fragments , for reference, U.S. penny (below).

Specimen weight: ¼ ounces (10 grams)

Collection: Northridge Campus


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