Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Copper Stain from
Yopsie Tunnel, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA


Locality type:Tunnel
Classification
Species:'Copper Stain' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Copper Stain data
Locality Data:Click here to view Yopsie Tunnel, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:660209
Long-form Identifier:1:3:660209:3
GUID (UUID V4):0
Nearest other occurrences of Copper Stain
41.1km (25.5 miles) ⓘBartlett Mine, St. Kevin - Independence, Lake County, Colorado, USA
62.7km (38.9 miles) ⓘMaid of Athens, Quartz Creek Mining District, Gunnison County, Colorado, USA
65.3km (40.6 miles) ⓘBlack Hawk, Chalk Creek District, Chaffee County, Colorado, USA
65.5km (40.7 miles) ⓘSilent Friend, Quartz Creek Mining District, Gunnison County, Colorado, USA
75.8km (47.1 miles) ⓘLittle Charm Mine, Monarch Mining District, Chaffee County, Colorado, USA
75.9km (47.2 miles) ⓘSilver Dollar (Alice), Tomichi Mining District (White Pine Mining District), Gunnison County, Colorado, USA
79.5km (49.4 miles) ⓘMountain Chief Mine, Monarch Mining District, Chaffee County, Colorado, USA
References
Spurr (1898) Geology of the Aspen Mining District, Colorado. USGS Monograph No. 31
 
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