General Information:
Chemical Formula:
Sb+++Sb+++++2O6(OH)
Composition:
(Molecular Weight = 478.25 gm)
Antimony 76.37 % Sb
Hydrogen 0.21 % H
Oxygen 23.42 % O
Empirical Formula:
Sb3O6(OH)
Environment:
Associated as an alteration product of stibnite and other antimony minerals.
Locality:
Altar, Sonora, Mexico.
Name Origin:
From the Latin stibium - "antimony" and the Greek konis - "powder."
Physical Properties:
Cleavage:
None
Color:
brown, gray, lemon white, light yellow, or orange brown.
Density:
4.1 - 5.8, Average = 4.94
Diaphaniety:
Transparent to translucent
Habits:
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., Encrustations - Forms crust-like aggregates on matrix.,
Hardness:
4-5 - Fluorite-Apatite
Luminescence:
None.
Luster:
Vitreous - Dull
Streak:
light yellow
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