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Gillespite-sanbornite 7.86 ct.



275,00 €

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Gillespite-sanbornite  7.86 ct.

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Gillespite in sanbornite

Is a Barium,Iron silicate with formula BaFe++Si4O10 and hardness of 4 . Are small red crystal on white matrix of sanbornite : another rare Barium phyllosilicate with formula Ba(Si2O5) and hardness of 5. Sanbornite shows a weak fluorescence at short wave.Another rarity never been facet before.

It comes from Mina la Madrelena,Tes Pozos,Baja California Norte,Mexico.

Size:14.2x9x6.2 mm.

Weight:7.86 ct.