General Information:
Chemical Formula:Na2Ca(SO4)2
Composition:(Molecular Weight = 278.18 gm)Sodium 16.53 %
NaCalcium 14.41 %
CaSulfur 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
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