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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Atacamite from
Algomah Mine, Mass City, Ontonagon County, Michigan, USA


Locality type:Mine
Classification
Species:Atacamite
Formula:Cu2(OH)3Cl
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Atacamite data
Locality Data:Click here to view Algomah Mine, Mass City, Ontonagon County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:48478
Long-form Identifier:1:3:48478:9
GUID (UUID V4):0
Nearest other occurrences of Atacamite
38.9km (24.1 miles) ⓘWhite Pine Mine, White Pine, Ontonagon County, Michigan, USA
67.1km (41.7 miles) ⓘLaurium Mine, Osceola Township, Houghton County, Michigan, USA
72.1km (44.8 miles) ⓘCentennial Mine, Centennial Heights, Calumet Township, Houghton County, Michigan, USA
72.2km (44.9 miles) ⓘNo. 2 shaft, Centennial Mine, Centennial Heights, Calumet Township, Houghton County, Michigan, USA
72.6km (45.1 miles) ⓘNo. 6 shaft, Centennial Mine, Centennial Heights, Calumet Township, Houghton County, Michigan, USA
73.8km (45.9 miles) ⓘWolverine Mine, Wolverine, Calumet Township, Houghton County, Michigan, USA
75.5km (46.9 miles) ⓘAllouez Mine, Allouez, Allouez Township, Keweenaw County, Michigan, USA
76.0km (47.2 miles) ⓘAllouez No. 1 Mine, Allouez Mine, Allouez, Allouez Township, Keweenaw County, Michigan, USA
76.5km (47.5 miles) ⓘAhmeek No. 1 Shaft, Ahmeek Mine, Ahmeek, Allouez Township, Keweenaw County, Michigan, USA
90.7km (56.3 miles) ⓘPhoenix Mine, Phoenix, Houghton Township, Keweenaw County, Michigan, USA
References
Williams, S. A. (1962) Stability relations and paragenesis of copper oxides and chlorides at the Algomah Mine, Ontonagon County, Michigan. Economic Geology: 57(1): 111-113.
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.112
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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