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Riebeckite 2.61 ct.

#4804

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45,00 €

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Riebeckite  2.61 ct.

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Riebeckite is a sodium-rich member of the amphibole group of silicate minerals, chemical formula Na2(Fe2+3Fe3+2)Si8O22(OH)2. It forms a solid solution series with magnesioriebeckite. It crystallizes in the monoclinic system, usually as long prismatic crystals showing a diamond-shaped cross section, but also in fibrous, bladed, acicular, columnar, and radiating forms. Its Mohs hardness is 5.0–6.0

This material comes from Pervomaiskoe Tagebau,Krivoi Rog, Ukraine.

Size: 7.6x6.3x4.5 mm.

Weight:2.61 ct.

CODE#4804

OriginUcraina

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