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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Coffinite from
Ladwig Group (Ladwig No. 2; Ladwig No. 3; Claims: Ladwig No. 1), Ralston Buttes Mining District, Jefferson County, Colorado, USA


Classification
Species:Coffinite
Formula:U(SiO4) · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Coffinite data
Locality Data:Click here to view Ladwig Group (Ladwig No. 2; Ladwig No. 3; Claims: Ladwig No. 1), Ralston Buttes Mining District, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:493447
Long-form Identifier:1:3:493447:9
GUID (UUID V4):0
Nearest other occurrences of Coffinite
1.9km (1.2 miles) ⓘAubrey - Ladwig Mine (Aubrey Ladwig Lease; Gary Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
8.4km (5.2 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
9.5km (5.9 miles) ⓘOld Leyden Mine, Foothill Mining District, Jefferson County, Colorado, USA
11.6km (7.2 miles) ⓘLeyden Mine, Leyden, Foothill Mining District, Jefferson County, Colorado, USA
11.8km (7.3 miles) ⓘWright lease (Foothills Mine), Idledale Mining District, Jefferson County, Colorado, USA
11.8km (7.3 miles) ⓘIdledale Mining District, Jefferson County, Colorado, USA
23.6km (14.7 miles) ⓘStanley Mine (Gehrmann; Cooper; York; Whale; Golden Link), Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
34.8km (21.7 miles) ⓘFairday Mine, Central Mining District, Boulder County, Colorado, USA
39.1km (24.3 miles) ⓘBlue Jay Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
43.4km (27.0 miles) ⓘFair Day Mine, Jamestown Mining District, Boulder County, Colorado, USA
References
USGS Open-File Report 79-1615
 
and/or  
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