General Information:
Chemical Formula:
AlCa2(SO4)2F2Cl·4(H2O)
Composition:
(Molecular Weight = 444.78 gm)
Calcium 18.02 % Ca
Aluminum 6.07 % Al
Hydrogen 1.81 % H
Sulfur 14.42 % S
Chlorine 7.97 % Cl
Oxygen 43.17 % O
Fluorine 8.54 % F
Empirical Formula:
AlCa2(SO4)2F2Cl·4(H2O)
Environment:
A product of fumarolic exhalations at temperatures below 100 deg. C.
IMA Status:
Approved IMA
Locality:
The Tolbachik Main Fracture eruption (Cone II of the Northern fissure), Kanchatka, Russia.
Name Origin:
For V. I. Vlodavets (1893-1993), Russian volcanologist.
Physical Properties:
Cleavage:
[100] Perfect
Color:
colorless or yellow white.
Density:
2.35
Diaphaniety:
Transparent
Habits:
Tabular - Form dimensions are thin in one direction., Platy - Sheet forms (e.g. micas).,
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
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