Afghanite
Formula:
(Na, K)₂₂Ca₁₀[Si₂₄Al₂₄O₉₆](SO₄)₆Cl₆
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
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