Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.33-2.373.32
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
-
Cleavage
Perfect on {010}, good on {100}
{???} Distinct, {???} Distinct, {???} Distinct
Mohs Hardness
7.5-9999
2
10
👆🏻
Chemical Composition
Be 2BO 3(OH)Ulrich Henn and Claudio C.
LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)