Home > Term: dumortierite
dumortierite
An orthorhombic mineral, Al7(BO3)(SiO4)3O3; fibrous or radiating; Mohs hardness, 7 to 8-1/2; in schists, gneisses, and pegmatite dikes.
- Sõnaliik: noun
- Valdkond/domeen: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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