General Information:
Chemical Formula:
AlVO4·3(H2O)
Composition:
(Molecular Weight = 195.97 gm)
Aluminum 13.77 % Al
Vanadium 26.00 % V
Hydrogen 3.09 % H
Oxygen 57.15 % O
Empirical Formula:
Al(VO4)·3(H2O)
Environment:
In sandstone.
Locality:
Sullivan Brothers claim, Cypsum Valley, San Miguel County, Colorado, USA.
Name Origin:
Named for George Steiger (1869-1944), Chief chemist, U. S. Gological Survey.
Physical Properties:
Color:
canary yellow or olive green.
Density:
2.55
Habits:
Pulverulent - Forms a loose, poorly-coherent powdery mass., ,
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
Fluorescent.
Luster:
Waxy
Streak:
yellow
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