Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete for your votes.
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Chalcocite from
Copper Harbor Conglomerate stromatolite outcrops, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA


Locality type:Outcrop
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Copper Harbor Conglomerate stromatolite outcrops, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:403253
Long-form Identifier:1:3:403253:3
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
2.3km (1.4 miles) ⓘDan's Point, Eagle Harbor Township, Keweenaw County, Michigan, USA
7.4km (4.6 miles) ⓘClark Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
9.4km (5.9 miles) ⓘG-2 Prospect, Bete Grise, Grant Township, Keweenaw County, Michigan, USA
10.4km (6.5 miles) ⓘLac La Belle Prospect, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
10.8km (6.7 miles) ⓘHorseshoe Harbor, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
11.1km (6.9 miles) ⓘMendota Mine, Mount Bohemia, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
11.1km (6.9 miles) ⓘMount Bohemia Mine, Mount Bohemia, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
11.2km (7.0 miles) ⓘ813 - Mt. Bohemia West Prospect, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
13.9km (8.6 miles) ⓘG-13 Prospect, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
15.2km (9.4 miles) ⓘG-12 Prospect, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
References
Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.
 
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