General Information:
Chemical Formula:
Fe+++2Te++++3O9·2(H2O)
Composition:
(Molecular Weight = 674.52 gm)
Iron 16.56 % Fe
Tellurium 56.75 % Te
Hydrogen 0.60 % H
Oxygen 26.09 % O
Empirical Formula:
Fe3+2Te3O9·2(H2O)
Physical Properties:
Cleavage:
[010] Perfect
Color:
yellow or greenish yellow.
Density:
4.52 - 4.53, Average = 4.52
Diaphaniety:
Transparent to Translucent
Habits:
Mammillary - Larger "breast-like" rounded forms resembling botryoidal (e.g. malachite)., ,
Hardness:
2-2.5 - Gypsum-Finger Nail
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Dull
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