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
Alma Lincoln Mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek 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 Alma Lincoln Mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:360526
Long-form Identifier:1:3:360526:4
GUID (UUID V4):0
Nearest other occurrences of Malachite
2.2km (1.4 miles) ⓘOld Settler Mine & Tunnel, Lawson Mining District, Clear Creek County, Colorado, USA
3.0km (1.9 miles) ⓘTigris, Lawson Mining District, Clear Creek County, Colorado, USA
3.4km (2.1 miles) ⓘGem (Freighter's Friend), Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
8.3km (5.1 miles) ⓘBonanza, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
12.2km (7.6 miles) ⓘEvergreen Mine (Gold Standard; Nancy Lee), Apex Mining District (Kingston Mining District; Pine Mining District), Gilpin County, Colorado, USA
14.9km (9.3 miles) ⓘGeorgetown-Silver Plume Mining District (Griffith Mining District; Silver Plume Mining District), Clear Creek County, Colorado, USA
15.3km (9.5 miles) ⓘOld Soda Creek School Pegmatite, Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
19.0km (11.8 miles) ⓘHosa Lodge Mine, Evergreen Mining District (Malachite Mining District), Jefferson County, Colorado, USA
21.0km (13.0 miles) ⓘCu Prospect (MRDS - 10087812), Ralston Buttes Mining District, Jefferson County, Colorado, USA
23.7km (14.7 miles) ⓘF.M.D. Mine, Evergreen Mining District (Malachite Mining District), Jefferson County, Colorado, USA
References
USGS OFR 66-87(Moench,1966)
 
and/or  
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