Aragonite 1

**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