Botryoidal aragonite and calcite Hedenbergite Slices of picture jasper make

Slices of picture jasper make a beautiful and unique display piece for your collection

UV reactivity This material reacts well

** Staining warning

UV reactivity Under 365nm UV light

There are a lot of broken stalactites

Botryoidal aragonite and calcite Hedenbergite Slices of picture jasper makeLocale: Sidi Ayed, Fs Mekns Region, Morocco Approx dimensions: 3 x 2. 5 x 2" Approx size: 365g 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 same chemical