Grandidierite
Grandidierite
Grandidierite

Grandidierite

€420,00

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SKU: A963
Behara, Amboasary Sud District, Anosy, Madagascar
An attractive specimen with several larger crystals of this rare mineral embedded in matrix.
12.0 x 8.0 x 5.4 cm
541.7 g

Grandidierite is a rare orthorhombic nesosilicate crystallizing in crystalline form, consisting of both SiO4 and BO3 elements (a borosilicate). This greenish-blue mineral is relatively hard (Mohs = 7.5), mostly opaque, and rarely translucent or transparent. A higher iron content results in a greener color for grandidierite. End-faced crystals are rare.