Banded Turkish Agate DX2131 larvikite also known as black tourmaline

also known as black tourmaline

The last photo shows the specimen under a long-wave UV flashlight

Fluorite Brahma Carving

This Spanish aragonite specimen has a lovely purple color in the center of the crystals and fades abruptly to an opaque white at the ends

depending on its source

Banded Turkish Agate DX2131 larvikite also known as black tourmalineBanded Agate Approx. Dimensions: 6 x 3 x 2. 25 inches Approx. Weight: 853 grams Locality: Turkey Includes the acrylic 3 prong stand as shown in the photos. Banded agates are beautiful and captivating stones that form within cavities or voids in volcanic rocks, often as nodules or geodes. They are a type of chalcedony, which is a variety of microcrystalline quartz. The characteristic bands or layers of color that give banded agates their name are a