Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Roscoelite from
Mogul Tunnel Occurrence, Boulder County Tungsten Mining District, Boulder County, Colorado, USA


Locality type:Occurrence
Classification
Species:Roscoelite
Formula:KV23+(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Roscoelite data
Locality Data:Click here to view Mogul Tunnel Occurrence, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:491662
Long-form Identifier:1:3:491662:8
GUID (UUID V4):0
Nearest other occurrences of Roscoelite
0.7km (0.4 miles) ⓘSwathmore tunnel, Eldora, Caribou Mining District, Boulder County, Colorado, USA
1.6km (1.0 miles) ⓘEnterprise Vein Occurrence, Eldora, Caribou Mining District, Boulder County, Colorado, USA
17.4km (10.8 miles) ⓘMountain Lion Mine - Keystone vein, Magnolia Mining District, Boulder County, Colorado, USA
17.5km (10.9 miles) ⓘKeystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
18.2km (11.3 miles) ⓘLogan & Sunbeam Occurrence, Gold Hill Mining District, Boulder County, Colorado, USA
19.2km (11.9 miles) ⓘSlide Mine, Gold Hill Mining District, Boulder County, Colorado, USA
22.3km (13.9 miles) ⓘNugget Group, Jamestown Mining District, Boulder County, Colorado, USA
23.2km (14.4 miles) ⓘBuena Mine, Jamestown Mining District, Boulder County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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