General Information:
Chemical Formula:
(K,Ba,Na)(Ti++++,Nb)(Si,Al)2(O,OH)7·(H2O)
Physical Properties:
Cleavage:
[100] Perfect
Color:
brownish yellow, pink, or reddish brown.
Density:
2.901 - 2.96, Average = 2.93
Hardness:
6 - Orthoclase
More details...