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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Tetrahedrite Subgroup from
Georgetown-Silver Plume Mining District (Griffith Mining District; Silver Plume Mining District), Clear Creek County, Colorado, USA


Locality type:Mining District
Classification
Species:'Tetrahedrite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)Sb4S12S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tetrahedrite Subgroup data
Locality Data:Click here to view Georgetown-Silver Plume Mining District (Griffith Mining District; Silver Plume Mining District), Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:358243
Long-form Identifier:1:3:358243:5
GUID (UUID V4):0
Nearest other occurrences of Tetrahedrite Subgroup
0.7km (0.4 miles) ⓘGabanta, Georgetown District, Clear Creek County, Colorado, USA
0.8km (0.5 miles) ⓘSnowdrift, Georgetown District, Clear Creek County, Colorado, USA
1.1km (0.7 miles) ⓘMaine Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
1.2km (0.8 miles) ⓘBrown Mountain Tunnel, Georgetown District, Clear Creek County, Colorado, USA
1.3km (0.8 miles) ⓘCentennial group (Barrel; Big I.), Georgetown District, Clear Creek County, Colorado, USA
1.8km (1.1 miles) ⓘBismark Pelican (Pelican - Dives Mine), Georgetown District, Clear Creek County, Colorado, USA
1.9km (1.2 miles) ⓘColorado Central mine, Georgetown District, Clear Creek County, Colorado, USA
1.9km (1.2 miles) ⓘSunburst - Sceptre Group, Georgetown District, Clear Creek County, Colorado, USA
2.1km (1.3 miles) ⓘMendota Mine - Victoria Tunnel & Shaft, Georgetown District, Clear Creek County, Colorado, USA
2.6km (1.6 miles) ⓘSeven-Thirty Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
References
USGS PP 223(Lovering,1950)
 
and/or  
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