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Sylvanite from
Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA


07466570017272054061602.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
07351060017363977633521.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
08470360017370724396708.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
06747060017415498551301.jpg
Sylvanite, etc.

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
07466570017272054061602.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
05568540017363977637162.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
08470360017370724396708.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
06747060017415498551301.jpg
Sylvanite, etc.

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
07466570017272054061602.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
07351060017363977633521.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
08470360017370724396708.jpg
Sylvanite

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
08417350017429396541462.jpg
Sylvanite, etc.

Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Locality type:Mine
Classification
Species:Sylvanite
Formula:AgAuTe4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pyrite1
Data
Mineral Data:Click here to view Sylvanite data
Locality Data:Click here to view Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:438164
Long-form Identifier:1:3:438164:8
GUID (UUID V4):0
Nearest other occurrences of Sylvanite
0.3km (0.2 miles) ⓘMountain Lion Mine - Keystone vein, Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘFortune Occurrence, Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘLady Franklin Mine, Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘAmerican Eagle - Interocean Occurrence, Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘSenator Hill and Ophir Veins, Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘBelmont (Graphic; Holy Cross; Tungsten King Occurrence), Magnolia Mining District, Boulder County, Colorado, USA
0.8km (0.5 miles) ⓘPoorman Mine (1), Magnolia Mining District, Boulder County, Colorado, USA
1.1km (0.7 miles) ⓘMagnolia Vein, Kekionga Mine, Magnolia Mining District, Boulder County, Colorado, USA
2.3km (1.4 miles) ⓘEmpress (Sylvan Ute), Boulder County Tungsten Mining District, Boulder County, Colorado, USA
2.7km (1.7 miles) ⓘRed Signe Mine, Boulder County Tungsten 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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