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Sursassite 7.70 ct.



140,00 €

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Sursassite  7.70 ct.

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is a manganese silicate with formula Mn2+2Al3(SiO4)(Si2O7)(OH)3 and hardness of 3.

Here is mixed with milky white quartz; the black striae are pyrolusite. A quite rare mineral, and never seen facet.

From Graveglia Valley ( Genova ) Molinello Mine, Italy.

Size: 14.6x11.5x7.3 mm.

Weight: 7.70 ct.



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