Brazilianite
Chemical Formula	NaAl3(PO4)2(OH)4
Species	Phosphates
Crystal System	Monoclinic
Mohs Scale	5
Specific Gravity	2.98
Color	Yellow, green, colorless
Streak	White
Luster	Vitreous, Sub-Vitreous, Greasy
Refractive Index	n = 1.602 n = 1.609 n = 1.621 - 1.623
Diaphaneity	Transparent
Cleavage	Distinct/GoodGood on
Fracture	Conchoidal
Crystal Habit：Prismatic; Spherical druses
Geological Setting：Phosphate zones in granitic pegmatites. Metamorphosed sedimentary deposits.