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**Chemical composition:** CaCO₃
**Hardness:** 3.5‒4
**Density:** 2.9 g/cm³
**Crystal system:** Orthorhombic
**Luster:** Vitreous, Resinous
**Info:** Aragonite is a one of two crystal forms of calcium carbonate (CaCO₃) building often columnar or fibrous crystals. A typical colour is white, grey, bluish, yellowish-white. The type location for aragonite is Molina de Aragón in Spain. Aragonite occures naturally in almost all mollusk shells, calcareous worms, some corals and extinct ammonites.
## Keywords
mineral Aragonite texture color ornamental stone semi-precious gemstone