Aragonite and calcite (repaired) Smoky quartz It is often cut into

It is often cut into flat slabs to best show the pattern

Petrified wood is a form of fossilized wood where the organic material has been replaced with minerals

most pieces glowing strong green under 365nm UV light

Radial growth forms are typical of the Imilchil region in Morocco

Aragonite and calcite (repaired) Smoky quartz It is often cut intoLocale: Sidi Ayed, Fs Mekns Region, Morocco Approx dimensions: 3. 5 x 2 x 1. 5" Approx size: 285g **Repaired specimen Calcite and aragonite are polymorphs of one another, meaning that the same chemical composition (calcium carbonate) has crystallized into different crystal structures (trigonal and orthorhombic, respectively). Calcite and aragonite often grow together, and the two minerals are also frequent paramorphs of one anothera pseudomorph of the