Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Montroseite from
Cougar Mine, San Miguel County, Colorado, USA


Locality type:Mine
Classification
Species:Montroseite
Formula:(V3+,Fe3+)O(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Montroseite data
Locality Data:Click here to view Cougar Mine, San Miguel County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:489857
Long-form Identifier:1:3:489857:3
GUID (UUID V4):0
Nearest other occurrences of Montroseite
3.5km (2.2 miles) ⓘBurro Mine, San Miguel County, Colorado, USA
7.0km (4.3 miles) ⓘSunset Claims, Slick Rock Mining District, Colorado, USA
9.4km (5.8 miles) ⓘWest Sunday Mine, Slick Rock Mining District, Colorado, USA
10.7km (6.6 miles) ⓘSunday Mine, Slick Rock Mining District, Colorado, USA
13.9km (8.6 miles) ⓘWilson shaft, Ucolo Mining District, San Juan County, Utah, USA
17.0km (10.6 miles) ⓘPickett Corral Mine, Montrose County, Colorado, USA
17.3km (10.7 miles) ⓘBlue Streak Mine, Montrose County, Colorado, USA
19.5km (12.1 miles) ⓘWood Mine, San Juan County, Utah, USA
22.0km (13.7 miles) ⓘPeanut Mine, Bull Canyon, Montrose County, Colorado, USA
23.0km (14.3 miles) ⓘDuggan Adit, Montrose County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Shawe, D.R., (2011), Uranium-vanadium deposits of the Slick Rock district, Colorado: U.S. Geological Survey Professional Paper 576-F, 80 p., 20 plates.
 
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