another Example - Mineral 20
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.
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.