1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.993Not Available
1
7.18
1.5 Fracture
Uneven, Brittle
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
Perfect on [100], [010], [001]
None
1.7 Mohs Hardness
1.8 Chemical Composition
Not Available
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.