QTY 1 - Polished Brown Goniatite Ammonite Fossil / 2.5-4" AVG Menu Cubes Black onyx derives its color

Black onyx derives its color from quartz and other inclusions while it forms

which gets its color from very small inclusions of fluid or gas that mixed with the stone while it formed

Optical calcite

When using the cherry-picking option

Pieces measure approximately 30 to 40 millimeters (AVERAGE SIZE)

QTY 1 - Polished Brown Goniatite Ammonite Fossil / 2.5-4" AVG Menu Cubes Black onyx derives its colorPolished Brown Goniatite Ammonite Fossil Origin: Morocco Pieces measure approximately 2. 5 to 4 inches (AVERAGE SIZE) The picture is an example ONLY. This listing is for a 100% natural product. Please allow for variation in size, shape, color, and formation. Randomly selected gemstones, cherry picking requests can not be fulfilled. CRYSTAL RIVER GEMS WHOLESALE BULK **Fast domestic and international shipping**