Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
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Pyrite from
Swathmore tunnel, Eldora, Caribou Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Swathmore tunnel, Eldora, Caribou Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:662310
Long-form Identifier:1:3:662310:4
GUID (UUID V4):0
Nearest other occurrences of Pyrite
1.0km (0.6 miles) ⓘEnterprise Vein Occurrence, Eldora, Caribou Mining District, Boulder County, Colorado, USA
3.5km (2.2 miles) ⓘBoulder County Mine, Caribou Mining District, Boulder County, Colorado, USA
3.6km (2.2 miles) ⓘPoorman Mine (2), Caribou Mining District, Boulder County, Colorado, USA
3.8km (2.3 miles) ⓘCaribou Mine (Caribou shaft), Caribou Mine group, Grand Island, Caribou Mining District, Boulder County, Colorado, USA
5.4km (3.4 miles) ⓘConger Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
6.0km (3.7 miles) ⓘSmuggler; Bonanza, Independence Mining District (Perigo Mining District), Gilpin County, Colorado, USA
6.3km (3.9 miles) ⓘRooks County occurrence, Apex Mining District (Kingston Mining District; Pine Mining District), Gilpin County, Colorado, USA
7.3km (4.5 miles) ⓘWar Eagle, Independence Mining District (Perigo Mining District), Gilpin County, Colorado, USA
7.5km (4.6 miles) ⓘClyde Mine (Lily Mine; Gale Mine; Hoosier; Western Star), Boulder County, Colorado, USA
7.7km (4.8 miles) ⓘBig Horn Shaft (Caribou), Sugarloaf Mining District, Boulder County, Colorado, USA
References
U.S. Geological Survey Professional Paper 223.
 
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