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Fluoro-potassic-magnesio-arfvedsonite 3.62 ct.

#3757

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70,00 €

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Fluoro-potassic-magnesio-arfvedsonite  3.62 ct.

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Fluoro-potassic-magnesio-arfvedsonite

Is one of the many amphibole with formula [(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2] and hardness of 5.5-6.Dark bluish fibrous acicular vein-like aggregates, very rich in a 1,4-billion years old Shonkinite matrix. The name Fluoro-potassic-magnesio-arfvedsonite is the longest of all mineral names; it comes from Mountain Pass Mine, Clark Mts., San Bernardino Co., California / USA

Size:11.8x7.8x5.2 mm.

Weigth:3.62 ct.

CODE#3757

OriginCalifornia