Dumortierite
Dumortierite
Al₇BSi₃O₁₈
- Type
- Crystal
- Family
- Dumortierite
- Status
- Natural
- Mohs hardness
- 7-8.5
- Common colors
- Blue, Violet, Purple, Brown
ABOUT
A fibrous aluminum borosilicate mineral, typically found in deep blue to violet aggregates.
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