Rough Optical Calcite with Inclusions / 1.5-2.5" AVG - 1 KILO LOT rough stone sale Typically a transparent lavender or

Typically a transparent lavender or purple with a pearly luster

about 4 pieces)

Quantity: 10

creating its characteristic metallic luster and reflecting the geological processes that contribute to its vibrant and sparkling appearance

Please allow for variation in size

Rough Optical Calcite with Inclusions / 1.5-2.5" AVG - 1 KILO LOT rough stone sale Typically a transparent lavender orQuantity: 1 kilogram Average size range: 1. 5 to 2. 5 inches Optical calcite, also known as Iceland spar, is a special type of calcite that forms extremely clear and somewhat rectangular crystals. For centuries, sailors would use these crystals to help determine the direction of the sun on cloudy days for navigation.