General Information:
Chemical Formula:K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8(H2O)
IMA Status:Approved IMA 1987
Physical Properties:
Cleavage:[100] Perfect, [001] Distinct
Color:light violet or pink.
Density:2.61
Diaphaniety:Transparent to Translucent
Luster:Vitreous - Silky
Streak:white
More details...