General Information:
Chemical Formula:
CaSrV2O6(OH)2·3(H2O)
Composition:
(Molecular Weight = 413.64 gm)
Strontium 21.18 % Sr
Calcium 9.69 % Ca
Vanadium 24.63 % V
Hydrogen 1.95 % H
Oxygen 42.55 % O
Empirical Formula:
CaSrV4+2O6(OH)2·3(H2O)
Environment:
Coatings on sandstone.
IMA Status:
Approved IMA 1959
Locality:
Jo Dandy mine, Montrose County, Colorado, USA.
Name Origin:
Named for Andres M. del Rio (1764-1849), Mexican mineralogist, who discovered vanadium.
Physical Properties:
Color:
yellow brown, light yellow green, or dark green.
Density:
3.1
Diaphaniety:
Translucent
Habits:
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Aggregates - Made of numerous individual crystals or clusters., Acicular - Occurs as needle-li ke crystals.
Hardness:
2 - Gypsum
Luster:
Vitreous - Pearly
Streak:
pale yellow green
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