General Information:
Chemical Formula:
Na2Ca(SO4)2·4(H2O) (?)
Composition:
(Molecular Weight = 350.25 gm)
Sodium 13.13 % Na
Calcium 11.44 % Ca
Hydrogen 2.30 % H
Sulfur 18.31 % S
Oxygen 54.82 % O
Empirical Formula:
Na2Ca(SO4)2·4(H2O)
Environment:
A questionable species. Associated with other sulfates in a pyritic lignite.
Locality:
Einigkeit mine, Bauersberg, near Bischofsheim, Bavaria, Germany.
Name Origin:
Named for Oscar de Watteville of Paris, France.
Physical Properties:
Color:
white.
Density:
1.81
Habits:
Microscopic Crystals - Crystals visible only with microscopes., Acicular - Occurs as needle-like crystals.,
Luster:
Silky
Streak:
white
More details...