General Information:
Chemical Formula:
Sb2O3
Composition:
(Molecular Weight = 275.50 gm)
Antimony 88.39 % Sb
Oxygen 11.61 % O
Empirical Formula:
Sb2O2
Environment:
Oxidation of stibnite and other antimony minerals.
Locality:
Djebel-Haminate mine, northwest of Ain-Beida, District of Haracta, Constantine, Algeria.
Name Origin:
Named after the French mineralogist, H. H. de Senarmot (1808-1862).
Physical Properties:
Cleavage:
[111] Imperfect, [111] Imperfect, [111] Imperfect
Color:
white, colorless, or gray.
Density:
5.2 - 5.3, Average = 5.25
Diaphaniety:
Transparent to translucent
Habits:
Euhedral Crystals - Occurs as well-formed crystals showing good external form., Massive - Granular - Common texture observed in granite and other igneous rock., Encrustations - Forms crust-like aggregates on matrix.
Hardness:
2 - Gypsum
Luminescence:
None.
Luster:
Adamantine
Streak:
white
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