Brown Orthoceras and Ammonite Fossil Stone Coasters (4 Pieces) back-to-school agate reveals its unique and

agate reveals its unique and banded patterns

5" / 100 - 199 GRAMS

formed in a shallow sea bed millions of years ago

The initial layer and the surrounding minerals and conditions affect subsequent layers and give agate its wide variation in appearance

meaning that instead of forming from inorganic minerals or crystals it instead forms from plants or animals

Brown Orthoceras and Ammonite Fossil Stone Coasters (4 Pieces) back-to-school agate reveals its unique andBrown Orthoceras and Ammonite Fossil Stone Coasters Uniqueness Guaranteed: Every item is one of a kind, making them ideal for all projects or designs. Origin: Morocco Pieces measure approximately 4 inches Orthoceras is an extinct genus of ancient cephalopods that lived during the Paleozoic era, particularly in the Ordovician period, which occurred around 485 to 443 million years ago. The name "Orthoceras" means "straight horn," referring to the