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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Gneiss from
Sedalia Mine (Sedalia Copper Mine), Sedalia Mining District, Chaffee County, Colorado, USA


Locality type:Mine
Classification
Type:Gneiss
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gneiss data
Locality Data:Click here to view Sedalia Mine (Sedalia Copper Mine), Sedalia Mining District, Chaffee County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:1328501
Long-form Identifier:1:3:1328501:8
GUID (UUID V4):0
Nearest other occurrences of Gneiss
0.1km (0.1 miles) ⓘWalter Higham Mine, Cleora Mining District, Chaffee County, Colorado, USA
0.6km (0.4 miles) ⓘUnnamed Fluorspar Deposit (MRDS - 10013780), Browns Canyon Mining District, Chaffee County, Colorado, USA
1.6km (1.0 miles) ⓘUnnamed Fluorspar Deposit (MRDS - 10087834), Browns Canyon Mining District, Chaffee County, Colorado, USA
1.8km (1.1 miles) ⓘUnnamed Manganese Deposit (MRDS - 10087826), Cleora Mining District, Chaffee County, Colorado, USA
2.0km (1.2 miles) ⓘUnnamed Manganese Deposit (MRDS - 10090938), Cleora Mining District, Chaffee County, Colorado, USA
2.5km (1.6 miles) ⓘUnnamed Fluorspar Deposit (MRDS - 10013781), Browns Canyon Mining District, Chaffee County, Colorado, USA
2.6km (1.6 miles) ⓘUnnamed Manganese Deposit (MRDS - 10013768), Cleora Mining District, Chaffee County, Colorado, USA
3.9km (2.4 miles) ⓘAlderman deposit, Browns Canyon Mining District, Chaffee County, Colorado, USA
3.9km (2.5 miles) ⓘAce High - Jackpot Prospect, Turret Mining District, Chaffee County, Colorado, USA
4.0km (2.5 miles) ⓘAmerican Flag Mine, Turret Mining District, Chaffee County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Berke, Edward H., Spry, Paul G., Heimann, Adriana, Teale, Graham S., Johnson, Benjamin, von der Handt, Anette, Alers, Brian, Shallow, John M. (2023) The genesis of metamorphosed Paleoproterozoic massive sulphide occurrences in central Colorado: geological, mineralogical and sulphur isotope constraints. Geological Magazine, 160 (7) 1345-1375 doi:10.1017/s0016756823000407
 
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