General Information:
Chemical Formula:
KAl(SO4)2·11(H2O)
Composition:
(Molecular Weight = 456.38 gm)
Potassium 8.57 % K
Aluminum 5.91 % Al
Hydrogen 4.86 % H
Sulfur 14.05 % S
Oxygen 66.61 % O
Empirical Formula:
KAl(SO4)2·11(H2O)
Locality:
San Bernardino County, California, USA.
Name Origin:
Named for the composition (Kalium = potassium).
Physical Properties:
Color:
colorless or white.
Density:
1.76
Diaphaniety:
Transparent
Habits:
Fibrous - Crystals made up of fibers., Water Soluble - Water soluble mineral.,
Hardness:
2 - Gypsum
Luminescence:
Phosphorescent fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...