2.5" Aragonite Twinned Crystal Cluster - Morocco
This is a beautiful cluster of well defined, cinnamon colored Aragonite crystals from Bou Azzer, Morocco. The translucent crystals are all twinned with pseudohexagonal (6 sided) shapes, and many of the crystals are double terminated.
Aragonite is a carbonate mineral with the chemical composition of CaCO3. It is a pseudomorph after calcite and varies in colors depending on impurities. It displays a translucent to white color when pure, and when impure can vary between yellow, green, pink, blue and brown. Typically forming in low temperature hydrothermal veins, It is also known to form in hot springs, as precipitates from chemicals in sedimentary rock, and in some cases as crystals in fossilized sea creatures.