Home > Term: glaucophane
glaucophane
A monoclinic mineral, 2(Na2(Mg,Fe)3Al2Si8O22(OH)2) ; amphibole group with Mg/(Mg+Fe) = 0.5 to 1.0; prismatic cleavage; bluish-gray to lavender blue; common in low-temperature, high-pressure schists associated with lawsonite, pumpellyite, or epidote. Compare: crossite; riebeckite.
- Sõnaliik: noun
- Valdkond/domeen: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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