Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)
Uneven, Brittle, Uneven, Brittle, Uneven
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.
(K,Na)Ca4Si8O20(F,OH)•8(H2O)