1 Physical Properties
1.1 Tenacity
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1.2 Solubility
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1.3 Durability
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1.4 Specific Gravity
Not AvailableNot Available
1
7.18
2.5 Fracture
Not Available
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
2.6 Cleavage
2.7 Mohs Hardness
2.11 Chemical Composition
Not Available
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.