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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Pitchblende from
Golden Calf Shaft, Lawson Mining District, Clear Creek County, Colorado, USA


Locality type:Shaft
Classification
Species:Uraninite var: Pitchblende
Formula:UO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pitchblende data
Locality Data:Click here to view Golden Calf Shaft, Lawson Mining District, Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:666116
Long-form Identifier:1:3:666116:8
GUID (UUID V4):0
Nearest other occurrences of Pitchblende
1.7km (1.1 miles) ⓘMary Mine (Phillips tunnel), Fall River, Clear Creek County, Colorado, USA
2.2km (1.4 miles) ⓘBlazing Star tunnel, Lower Almaden Mine, Central City Mining District, Clear Creek County, Colorado, USA
3.1km (1.9 miles) ⓘMartha E. Mine, Lamartine Mining District, Clear Creek County, Colorado, USA
3.3km (2.1 miles) ⓘJoe Reynolds (Elida), Lawson Mining District, Clear Creek County, Colorado, USA
3.7km (2.3 miles) ⓘGolconda Mine, Fall River, Clear Creek County, Colorado, USA
4.0km (2.5 miles) ⓘAlma Lincoln Mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
4.0km (2.5 miles) ⓘBellevue - Rochester, Jackson Mining District (Corral Mining District), Clear Creek County, Colorado, USA
4.1km (2.6 miles) ⓘPeabody (Robineau occurrence), Lawson Mining District, Clear Creek County, Colorado, USA
4.2km (2.6 miles) ⓘSunnyside Tunnel, Fall River, Clear Creek County, Colorado, USA
4.5km (2.8 miles) ⓘStar Mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
References
Sims, P.K. (1963) Geology of uranium and associated ore deposits, central part of the Front Range mineral belt, Colorado. Professional Paper 371. US Geological Survey doi:10.3133/pp371
 
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