Dioptase from Namibia (larger specimen) Freeform and is usually a dark

and is usually a dark grey

15 W x 3 H inches

Kyanite is usually found in elongated blades and can be UV reactive

Just like it's namesake implies

They are both very similar having the same chemical formula CaCO3

Dioptase from Namibia (larger specimen) Freeform and is usually a darkDioptase is considered a very rare, and highly prized mineral due to its complex mineral structure. Namibia is globally renowned for producing some of the world's most pristine, vibrant green crystals. The green is actually caused by the presence of copper within its chemical structure. Measuring 1. 5 inches in height, 1. 3 inches in length, and . 5 inches in width. Weighing . 8 ounces. Customer will receive the exact item pictured.