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Magnesio-ferri-fluoro-hornblende 3.39 ct.

#7007

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Magnesio-ferri-fluoro-hornblende 3.39 ct.

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Magnesio-ferri-fluoro-hornblende

is a Calcium subgroup of the magnesio-hornblende group with Ca2[Mg4(Al,Fe+++)]Si7AlO22(OH)2 formula and hardness of 5-6. Has been discovered in Portoscuso, near Carbonia,Sardinia island, Italy.Greenish grey acicular blocky crystal aggregates in Calcite Feldspar matrix.From Eklogit Quarry, Lieser Valley, Spittal a. d. Drau, Carinthia / Austria

Size: 9x9x6.4 mm.

Weight: 3.39 ct.

CODE#7007