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


Locality type:Mining District
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ankerite 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:358223
Long-form Identifier:1:3:358223:7
GUID (UUID V4):0
Nearest other occurrences of Ankerite
0.7km (0.4 miles) ⓘGabanta, Georgetown District, Clear Creek County, Colorado, USA
1.9km (1.2 miles) ⓘColorado Central mine, Georgetown District, Clear Creek County, Colorado, USA
2.1km (1.3 miles) ⓘAetna Mine, Georgetown District, Clear Creek County, Colorado, USA
3.6km (2.2 miles) ⓘSummit (Magnet; Woodley; Mascotte; Comet), Georgetown District, Clear Creek County, Colorado, USA
7.8km (4.8 miles) ⓘStevens Mine, Argentine Mining District, Clear Creek County, Colorado, USA
8.0km (5.0 miles) ⓘSantiago Mine, Argentine Mining District, Clear Creek County, Colorado, USA
11.8km (7.3 miles) ⓘPuzzler Occurrence, Dailey Mining District (Jones Pass Mining District), Clear Creek County, Colorado, USA
14.3km (8.9 miles) ⓘPhoenix Shaft, Lawson Mining District, Clear Creek County, Colorado, USA
15.3km (9.5 miles) ⓘStanley Mine (Gehrmann; Cooper; York; Whale; Golden Link), Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
15.7km (9.8 miles) ⓘDoctor Mine, Dailey Mining District (Jones Pass Mining District), Clear Creek County, Colorado, USA
References
USGS PP 223(Lovering,1950)
 
and/or  
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