Grandidierite
Grandidierite
Grandidierite

Grandidierite

€45,00

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SKU: B061
Behara, Amboasary South District, Anosy, Madagascar
Beautiful mid-grade specimen with cruciately arranged grandidierite.
4.5 x 3.3 x 1.9 cm
29.7 g

Grandidierite is a rare orthohombic nesosilicate that consists of both SiO4 and BO3 elements ("borosilicate"). The blue-green mineral is relatively hard (Mohs=7.5), mostly opaque, more rarely translucent or transparent. A higher iron content causes grandidierite to be greener in color. Crystals with terminal faces are rarely found.