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Aragonite from Germany (old collection).
Stone dimensions: L: 83mm x W: 33mm x H: 68mm.
Weight: 180g with acrylic base.
Aragonite takes its name from the Aragon region of Spain, where it was first discovered in 1790.
Chemical composition | CaCO3 Calcium carbonate |
Hardness (Mohs scale) | 3.5 - 4 |
Density | 2,93 à 2,95 |
Streak | Blanc |