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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Quartzite from
Bon Ton Mine, Monarch Mining District, Chaffee County, Colorado, USA


Locality type:Mine
Classification
Type:Quartzite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartzite data
Locality Data:Click here to view Bon Ton Mine, Monarch Mining District, Chaffee County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:1493745
Long-form Identifier:1:3:1493745:5
GUID (UUID V4):0
Nearest other occurrences of Quartzite
4.4km (2.8 miles) ⓘWest Gold Hill, Tincup Mining District (Pieplant Mining District), Gunnison County, Colorado, USA
10.3km (6.4 miles) ⓘLamphere Lakes Occurrence, Quartz Creek Mining District, Gunnison County, Colorado, USA
32.5km (20.2 miles) ⓘLittle Indian No. 36 Mine, Gunnison County, Colorado, USA
33.6km (20.9 miles) ⓘLittle Indian No. 6 Prospect, Saguache County, Colorado, USA
34.3km (21.3 miles) ⓘApache No. 4 Prospect, Saguache County, Colorado, USA
40.3km (25.0 miles) ⓘWalter Higham Mine, Cleora Mining District, Chaffee County, Colorado, USA
41.9km (26.0 miles) ⓘUnnamed Manganese Deposit (MRDS - 10087826), Cleora Mining District, Chaffee County, Colorado, USA
42.1km (26.1 miles) ⓘUnnamed Manganese Deposit (MRDS - 10090938), Cleora Mining District, Chaffee County, Colorado, USA
42.2km (26.2 miles) ⓘCochetopa Mining District (Cochetopa Creek Mining District), Saguache County, Colorado, USA
42.7km (26.5 miles) ⓘPoncha Pass Claim (3 Claims; Lucky Nos. 1), Poncha Pass Area, Chaffee County, Colorado, USA
References
Spry, Paul G.; McFadden, Scott; Teale, Graham S.; Alers, Brian; Shallow, John M.; Glenn, Justin M. (2022) Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 141. 104632 doi:10.1016/j.oregeorev.2021.104632
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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