Black Onyx Raven Uruguay These pieces are polished into

These pieces are polished into a sphere

This piece is from the Congo and has been polished

Onyx is a variety of chalcedony

Strawberry Quartz is a pink to red variety of quartz

This piece is polished into a sphere

Black Onyx Raven Uruguay These pieces are polished intoOnyx is a variety of chalcedony, an ultra small quartz crystalline mineral. Onyx is formed in layers if micro quartz and moganite, another quartz mineral. These pieces are black and white onyx from Mexico that has been carved and polished into a raven. You will receive one piece from our current stock. All are of similar size and quality. Average Dimensions: 1. 25 L x 0. 75 W x 1. 5 H inches. Average Weight: 0. 07 pounds