Collection: Dumortierite
Formula: Al(Al2O)(Al2O)2(SiO4)3(BO3)
The given formula is the anhydrous end-member. Hydrogen incorporation leads to a more complex formula: (Al,◻)[Al2(O,OH)](Al2O)2[SiO3(O,OH)]3(BO3)
Colour: Blue, greenish-blue, violet-blue, pale blue, pink, red
Luster: Vitreous
Hardness: 7 - 8
Specific Gravity: 3.21 - 3.41
Crystal System: Orthorhombic
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Dumortierite in Quartz. 18.4g
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- €119,52
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- €119,52
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Dumortierite in Quartz. 20g
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- €97,90
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- €97,90
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Dumortierite in Quartz. 16g
- Regular price
- €102,45
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- €102,45
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Dumortierite in Quartz. 38g
- Regular price
- €136,59
- Sale price
- €136,59
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