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Breunnerite 2.98 ct.
Breunnerite 2.98 ct.
Breunnerite
also named Ferroan-Magnesite ( magnesium,iron carbonate ) with formula (Mg,Fe2+)CO3 and hardness of 4.5.
Is a magnesite variety with higher iron content between 5 and 30%.
partial transparent/opaque with flaws, uncommon mineral that
comes from Val di Vizze, Bolzano province, Italy.
Size : 9x9x5.8 mm.
Weight: 2.98 ct.
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