General Information:
Chemical Formula:
CaMg(AsO4)(OH)
Composition:
(Molecular Weight = 220.31 gm)
Calcium 18.19 % Ca
Magnesium 11.03 % Mg
Arsenic 34.01 % As
Hydrogen 0.46 % H
Oxygen 36.31 % O
Empirical Formula:
CaMg(AsO4)(OH)
Environment:
In manganese deposits ar Langban.
Locality:
TL: Sweden, Vrmland, Filipstad, Lngban mn
Name Origin:
From the Greek for indistinct, for its occurrence as massive.
Physical Properties:
Cleavage:
[???] Indistinct
Color:
blue gray, green, gray, yellow, or light green.
Density:
3.73 - 3.79, Average = 3.76
Diaphaniety:
Transparent
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., ,
Hardness:
5 - Apatite
Luminescence:
Non-fluorescent.
Luster:
Resinous
Streak:
white
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