Smoky Quartz Cluster from Mt. Blanc DX3458 optical calcite is also called birefringence and

is also called birefringence and is also responsible for the incredible displays of rainbows inside many optical calcite pieces

characterized by its coloration derived from traces of manganese

Ammolite Ring Size 6

Trapped gasses formed cavities within the rhyolite

7 mm diameter)

Smoky Quartz Cluster from Mt. Blanc DX3458 optical calcite is also called birefringence andSmoky Quartz Cluster from Mt. Blanc Approx. Dimensions: 3. 5x3x1. 25 inches Approx. Weight: 147 grams Locality: Les jardin de Talefre, Mt. Blanc, France Mont Blanc produces some of the best Alpine typical quartz in the world. This deep smoky colored quartz cluster is in great condition with superb luster.