Breunnerite 2.87 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:2.87 ct.

CODE#2827a