1 Physical Properties
1.2 Tenacity
Not Available
Not Available
1.3 Solubility
Not Available
Not Available
1.4 Durability
Not Available
Not Available
1.6 Specific Gravity
3.48-3.603.28-3.31
1
7.18
1.13 Fracture
Sub-Conchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.14 Cleavage
Distinct on [110], parting on {221}
None observed
1.15 Mohs Hardness
1.16 Chemical Composition
Not Available
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.