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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Malachite from
Copper King Mine (Yeager's Mine), Gold Hill, Gold Hill Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Malachite
Formula:Cu2(CO3)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Malachite data
Locality Data:Click here to view Copper King Mine (Yeager's Mine), Gold Hill, Gold Hill Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:149796
Long-form Identifier:1:3:149796:0
GUID (UUID V4):0
Nearest other occurrences of Malachite
4.7km (2.9 miles) ⓘYellow Pine, Sugarloaf Mining District, Boulder County, Colorado, USA
7.0km (4.4 miles) ⓘHumboldt Mine, Inexco Mine, Jamestown Mining District, Boulder County, Colorado, USA
9.7km (6.1 miles) ⓘBeryl Lode (Lehman mine), Left Hand Creek Mining District, Boulder County, Colorado, USA
10.6km (6.6 miles) ⓘColumbine Mine, Highline Prospect, Left Hand Creek Mining District, Boulder County, Colorado, USA
16.5km (10.3 miles) ⓘNo Name Mine (No Name vein), Caribou Mine group, Grand Island, Caribou Mining District, Boulder County, Colorado, USA
19.4km (12.1 miles) ⓘBankers Lode Claim, Ralston Buttes Mining District, Jefferson County, Colorado, USA
20.7km (12.9 miles) ⓘCu Prospect (MRDS - 10087812), Ralston Buttes Mining District, Jefferson County, Colorado, USA
21.0km (13.0 miles) ⓘ4th of July Occurrence, South Arapaho Peak, Arapaho Peaks, Boulder County, Colorado, USA
24.0km (14.9 miles) ⓘNorth Star Mine, Ralston Buttes Mining District, Jefferson County, Colorado, USA
25.5km (15.9 miles) ⓘEvergreen Mine (Gold Standard; Nancy Lee), Apex Mining District (Kingston Mining District; Pine Mining District), Gilpin County, Colorado, USA
References
Rocks & Min.: 22:205.
 
and/or  
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