The fossils of this rock sequence are commonly found in ancient Archean chert, a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz. 5. Western Australia ...

Eli has a collection of smaller fossils he keeps at home ... been used for buoyancy of the ammonite have been infilled with quartz during fossilisation, which is even rarer, and makes this ...

At the Sac & Fox Lapidary Club’s Rocktoberfest at the Jefferson County Fairgrounds in Fairfield this past weekend, attendees ...

Amethyst is a violet variety of quartz which has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...

The five-strong watch collection features four quartz models representing the four Hogwarts houses, plus one automatic offering pictured above. The Harry Potter x Fossil automatic watch features a ...