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V - Carbonates
Crystal habit of Aragonite Aragonite Aragonite (flowers of iron)

Name   Aragonite
Chemistry   CaCO3
Hardness   3.5 - 4
Lustre   vitreous - greasy
Colour   colourless, white, yellow, and other colours
Streak   white 
Density [g/cm3]   3.0
Crystal habit   orthorhombic, often twins and trillings (120°) "triple siamnese twin", pseudohexagonal
Cleavage, Fracture   [010] distinct, fracture conchoidal
other characteristics and occurrences   often radiating, columnar, fibrous, stalactitic, dendritic
flowers of iron (flos ferri) = tree, coral or worm like formation

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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