Optical Calcite - Iceland Spar

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Optical Calcite - Iceland Spar

These optical calcite / Iceland spar pieces are very translucent especially for how thick they are.

This collection ranges in size as follows:

Size 1: 25 to 40 grams (.88 to 1.41 ounces)  - around .5 to .75 inches in each direction

Size 2: 50 to 75 grams (1.76 to 2.64 ounces) - around .75 to 1 inches in each direction

Size 3: 90 to 115 grams (3.17 to 4.05 ounces)  - around 1 to 1.5 inches in each direction

Size 4: 140 to 200 grams (4.93 to 7.05 ounces) - around 1.5 to 2 inches in each direction

Only 11 left!