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Sericite from
Longfellow Mine, San Juan County, Colorado, USA


Locality type:Mine
Classification
Species:Muscovite var: Sericite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sericite data
Locality Data:Click here to view Longfellow Mine, San Juan County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:489931
Long-form Identifier:1:3:489931:0
GUID (UUID V4):0
Nearest other occurrences of Sericite
2.1km (1.3 miles) ⓘIdarado Mine, Ouray County, Colorado, USA
4.0km (2.5 miles) ⓘBrooklyn Mine, Brown's Gulch, San Juan County, Colorado, USA
8.2km (5.1 miles) ⓘCamp Bird Mine, Imogene Basin, Sneffels Mining District, Ouray County, Colorado, USA
8.7km (5.4 miles) ⓘSmuggler Union Mine, Marshall Basin, Telluride Mining District, Colorado, USA
8.7km (5.4 miles) ⓘLaura Dunmore occurrence, Ouray Mining District, Ouray County, Colorado, USA
8.8km (5.5 miles) ⓘSunnyside Mine group, Bonita Peak, Gladstone, Eureka Mining District, San Juan County, Colorado, USA
10.6km (6.6 miles) ⓘOphir Valley occurrence (New Dominion; Nevada Gulch; Silver Tip Lower Yellow Jacket; Chapman Gulch), Ophir, Ophir Mining District (Iron Springs Mining District), San Miguel County, Colorado, USA
10.7km (6.7 miles) ⓘVermillion, Eureka Mining District, San Juan County, Colorado, USA
12.3km (7.7 miles) ⓘSultan Mountain, Silverton, Animas Mining District, San Juan County, Colorado, USA
13.1km (8.2 miles) ⓘMineral Farm Mine, Canyon Creek, Ouray Mining District, Ouray 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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