Not Available
Boracite is found in evaporite deposits, Southern and central Africa, anhydrite and/or halite. Arthur Thomas
Colorless, White, Brownish, Reddish, Black, Brownish, Black, Colorless, gray, White, Reddish, Brown
Colorless, White, Yellow, Blue, Green, Colorless, gray, Yellow, White
Uneven
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Na 3AlF 6Ulrich Henn and Claudio C.
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references