Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Kasolite from
Two Sisters occurrence, Eureka Mining District, Gilpin County, Colorado, USA


Locality type:Occurrence
Classification
Species:Kasolite
Formula:Pb(UO2)(SiO4) · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Kasolite data
Locality Data:Click here to view Two Sisters occurrence, Eureka Mining District, Gilpin County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:463568
Long-form Identifier:1:3:463568:0
GUID (UUID V4):0
Nearest other occurrences of Kasolite
1.4km (0.9 miles) ⓘCentral City; Cherokee; Carroll; Woodmire; Rara Avis, Eureka Mining District, Gilpin County, Colorado, USA
2.1km (1.3 miles) ⓘBlackhawk placer (Black Hawk Lode No. 2 claim), Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
11.4km (7.1 miles) ⓘPeabody (Robineau occurrence), Lawson Mining District, Clear Creek County, Colorado, USA
30.6km (19.0 miles) ⓘBennett Mine (Hell Hole claims), Wheeler Basin, Grand County, Colorado, USA
48.1km (29.9 miles) ⓘSeerie pegmatite (Cooper pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
References
USGS Bull 1032A
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
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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