General Information:
Chemical Formula:
AlWO3(OH)3
Composition:
(Molecular Weight = 309.85 gm)
Aluminum 8.71 % Al
Hydrogen 0.98 % H
Tungsten 59.33 % W
Oxygen 30.98 % O
Empirical Formula:
AlWO3(OH)3
Environment:
In placers and probable alteration product of scheelite.
Locality:
Mt. Misobo tungsten mine, Kalima district, Maniema, Zaire.
Name Origin:
Named for Raymond Anthoine (1888-1971), Belgian mining engineer, who wrote on prospecting of alluvial deposits.
Physical Properties:
Cleavage:
[???] Perfect
Color:
white.
Density:
4.8
Habits:
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., ,
Hardness:
1 - Talc
Luster:
Earthy (Dull)
Streak:
white
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