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Bustamite 3.57 ct.



90,00 €

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Bustamite 3.57 ct.

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Is a Manganese Calcium silicate with formula (Ca,Mn)SiO3 and hardness 5.5-6-6

Often associated with sugilite and richterite but always opaque and full of fractures. Is very rare to find it translucent or gem quality without impurity, maybe less then 1/1000 is of good quality.

This material comes from Wessel Mine, Kalahari Manganese Fields,South Africa.

Size:10x7.3x5.8 mm.

Weight:3.75 ct.



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