General Information:
Chemical Formula:
Sb2O3
Composition:
(Molecular Weight = 291.50 gm)
Antimony 83.53 % Sb
Oxygen 16.47 % O
Empirical Formula:
Sb2O3
Environment:
Occurs as an oxidation procuct of various antimony minerals.
IMA Status:
Approved IMA 1960
Locality:
South Ham, Wolfe Co., Quebec.
Name Origin:
Named after the German alchemist, B. Valentinus (16th century).
Physical Properties:
Cleavage:
[110] Perfect, [010] Distinct
Color:
brownish reddish, colorless, gray white, grayish, or yellowish.
Density:
5.6 - 5.8, Average = 5.69
Diaphaniety:
Transparent
Habits:
Euhedral Crystals - Occurs as well-formed crystals showing good external form., Divergent - Crystals radiate from a center without producing stellar forms., Striated - Parallel lines on crystal surface or cleavage face.
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
None.
Luster:
Adamantine
Streak:
white
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