LithoCat

MineralBarrerite
FormulaNa2(Si7Al2)O18 ยท 6H2O
Crystal FormOrthorhombic/Dipyramidal [2/m 2/m 2/m]
CleavagePerfect on {010}
ColorWhite, Pink
Density2.1 – 2.3 g/cm3
DiaphaneityTransparent, Translucent
Hardness3.0 - 4.0
LustreVitreous
StreakWhite
Type Loc.Sant' Efisio Tower, Capo di Pula, Pula, Cagliari Prov., Sardinia, Italy
Dana 8 Class77.1.4.5
Strunz Class9.GE.15
Mindatmindat.org
WebMineralWebMineral
ID480