Clear Optical Calcite / 1-3" AVG - 1 KILO LOT Menu raw crystal point pendants Opal is a gemstone featuring

Opal is a gemstone featuring high water content

Weight: 342g

Avg Size Range: (2 Inches

resulting in vibrant hues and iridescent effects that add a colorful dimension to the geological processes of crystal formation

which then seal over

Clear Optical Calcite / 1-3" AVG - 1 KILO LOT Menu raw crystal point pendants Opal is a gemstone featuringQuantity: 1 kilogram Average size range: 1 to 3 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.