often with white banding

This specimen of Sudbury Black Onaping Breccia is a lithified fallback breccia composed of melt glass and country target rock fragments

Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America

like the radula and the odontophore

Impactite Monomict Breccia | 9.12 grams | Agoudal, Imilchil Structure | Morocco | SO24 Camel Donga often with white bandingThis is a must have 9. 12 gram Impactite, monomict impact breccia from the Agoudal, Imilchil impact structure, Morocco. Although not a meteorite, impactites are directly linked to them and their impacts and are probably going to be one of the rarest collection items you'll ever own. Impactite is a slag like glassy object found on the surface of the earth, formed from rock melted by the impact of a meteorite. The term impactite encompasses shock