Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.01-3.063.82-4.00
1
7.18
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Fracture
Conchoidal
-
Cleavage
Indiscernible
{???} Indistinct
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Mn2+9(SiO 4) 4(OH,F) 2Anthony et al , Handbook of mineralogy (2001)