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2 items @ $85.00  

Mineralpedia Details for Fervanite

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Fervanite

Fervanite

Formula
Fe3+4V5+4O16ยท5H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous 
Cleavage
None, None, None 
Luster
Adamantine 
Color
yellow, brown, pale green 
Streak
yellowish brown 
Class
Monoclinic 
Hardness
WebMineral
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Mindat
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Fervanite from Gypsum Valley dist., San Miguel Co., Colorado, United States

Fervanite
            from Gypsum Valley dist., San Miguel Co., Colorado, United States
Special Info
Type Locality

Golden fibrous Fervanite crystals up to 4mm in length at random, but oriented groups in sandstone matrix. The original label does not mention a specific mine only the district of "Gypsum Valley". There are three occurences in the district tabulated or mapped on Mindat, which is the Sullivan Brothers claim, Truck Group, and the Yellow Jacket occurence". Clicking on the GeoNames there are around a dozen other mines.

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