General Information:
Chemical Formula:
Na2Ca(SO4)2
Composition:
(Molecular Weight = 278.18 gm)
Sodium 16.53 % Na
Calcium 14.41 % Ca
Sulfur 23.05 % S
Oxygen 46.01 % O
Empirical Formula:
Na2Ca(SO4)2
Environment:
Dry salt-lake beds in desert climates.
Locality:
Searles Lake, San Bernardino Co., California.
Name Origin:
Named after Glauber's Salt, of alchemist origin.
Physical Properties:
Cleavage:
[001] Perfect
Color:
colorless, gray, gray white, yellow, or yellowish white.
Density:
2.7 - 2.85, Average = 2.77
Diaphaniety:
Transparent to translucent
Habits:
Tabular - Form dimensions are thin in one direction., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...