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Calcite on Magnetite - 09062103J

By Jeremy Perez on July 15, 2009 8:53 PM


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The larger crystals on this rock are about 1 cm in length.


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Mineral Type

Calcite - CaCO3
Magnetite (Matrix) - Fe+2Fe+32O4

Size15 x 16 x 8 cm
Collection ID09062103J
Collection LocationNear Comstock Mine, Iron Springs County, Utah, USA
37:36.874 N 113:23.576 W
Collection DateJune 21, 2009
Testing Results

Crystals:
Acetic Acid: Positive Reaction
Streak: Colorless
Hardness: 3

Magnetite:
Magnetism: Positive, weak
Streak: Dark Gray
Hardness: 3-6

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