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265g C 5
longest crystal 6 cm
but it can range into green or a bold contrast of black
Point length: 4
The crystals are attached to a matrix of light-colored grainy rock
Aragonite and calcite with botryoidal side Inner Mongolian quartz 265g C 5Locale: Sidi Ayed, Fs Mekns Region, Morocco Approx dimensions: 3 x 2. 75 x 2" Approx size: 480g (1 lb) 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
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