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Sensationelle Matrixstufe

Sensationelle Matrixstufe

I don't think I've ever seen as rich a blue in a zoisite as this 10 cm specimen on matrix from the Merelani hills of Tanzania

Formula: Ca2Al3(Si2O7)(SiO4)O(OH)

System: Orthorhombic

Colour:  purple, ...

Lustre: Vitreous

Hardness: 6 – 7



Photo : © Malte Sickinger

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