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Aragonite


Aragonite

Aragonite has got the chemical formula CaCO3. The name aragonite comes from a place of discovery in Spain which is in the region Aragon. Aragonite has got the same chemical formula like calcite, but it originates under other conditions. Aragonite crystallizes in an other crystal system than calcite, it has got a higher density and a higher hardness than calcite and so it is a different mineral. Aragonite forms huge prismatic crystals. It can has different colors and it can be transparent or not. Many aragonites look very nice. Aragonite is rarer than calcite. Aragonite can be found in Spain (Aragon), in Marocco, in Germany and in Italy (Sicily).

Data about Aragonite
Chemical formula CaCO3
Mineral class carbonates
Crystal system rhombical
Hardness 3.5 to 4
Density 2.9 g/cm3 to 3 g/cm3
Color colorless, white, yellow, reddish-brown
Line color white
Gloss glass gloss
Break shell
Fissileness none


Author and Webmaster: Lukas Czarnecki

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Last Update: 03.11.2004