Tree Agate Skull Lime Calcite the bands formed by the

the bands formed by the deposition of calcite saturated with iron

The black color is often due to the presence of iron impurities within the crystal structure

Also fluorescent with a 365nm UV Flashlight

Average measurements: 2 L x 2 W x 7 H inches

Mookaite is a variety of microgranular quartz found exclusively in the Kennedy Range of Western Australia

Tree Agate Skull Lime Calcite the bands formed by theMoss Agate is a variety of the microcrystalline quartz chalcedony. Inclusions of hornblende, chlorite, and other manganese and iron based minerals give the stone a mossy appearance. These pieces are polished into a skull shape. You will receive one piece selected from our current stock. All pieces are of similar size and quality. Average Dimensions: 1. 75 L x 1. 25 W x 1. 5 H inches Average Weight: 3. 7 ounces