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Sylvanite from
Lady Franklin Mine, Magnolia Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Sylvanite
Formula:AgAuTe4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sylvanite data
Locality Data:Click here to view Lady Franklin Mine, Magnolia Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:371965
Long-form Identifier:1:3:371965:7
GUID (UUID V4):0
Nearest other occurrences of Sylvanite
0.0km (0.0 miles) ⓘFortune Occurrence, Magnolia Mining District, Boulder County, Colorado, USA
0.0km (0.0 miles) ⓘAmerican Eagle - Interocean Occurrence, Magnolia Mining District, Boulder County, Colorado, USA
0.0km (0.0 miles) ⓘSenator Hill and Ophir Veins, Magnolia Mining District, Boulder County, Colorado, USA
0.0km (0.0 miles) ⓘBelmont (Graphic; Holy Cross; Tungsten King Occurrence), Magnolia Mining District, Boulder County, Colorado, USA
0.0km (0.0 miles) ⓘPoorman Mine (1), Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘKeystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘMountain Lion Mine - Keystone vein, Magnolia Mining District, Boulder County, Colorado, USA
1.6km (1.0 miles) ⓘMagnolia Vein, Kekionga Mine, Magnolia Mining District, Boulder County, Colorado, USA
2.4km (1.5 miles) ⓘEmpress (Sylvan Ute), Boulder County Tungsten Mining District, Boulder County, Colorado, USA
2.8km (1.7 miles) ⓘPaymaster-Wheelman Tunnel Occurrence (Black Crystal; Black Prince; Mac Group; Pennsylvania), Boulder County Tungsten Mining District, Boulder County, Colorado, USA
References
Lovering, T.S., Goddard, E.N. (1950) Geology and ore deposits of the Front Range, Colorado. Professional Paper 223. US Geological Survey doi:10.3133/pp223
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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