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Afghanite

Formula: (Na,Ca,K)8(Al6Si6O24)(Cl2,SO4,CO3)3 · 0.5H2O
System:Hexagonal
Colour:white, light blue, dark ...
Hardness:5½ - 6
Name:Named after the country of its discovery, Afghanistan.


Photos:
Locality: Kokcha Valley, Badakshan, Afghanistan
Crude crystal grains to 4mm in matrix.

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