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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Bornite from
Cape Rosier Mine (Callahan Mine; Rosier Consolidated Mine), Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA


02610300017375307596047.jpg
Bornite, etc.

Cape Rosier Mine, Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA
02610300017375307596047.jpg
Bornite, etc.

Cape Rosier Mine, Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA
00892020017272734842788.jpg
Bornite, etc.

Cape Rosier Mine, Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA
Locality type:Mine
Classification
Species:Bornite
Formula:Cu5FeS4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chalcopyrite3
Pyrite2
Calcite2
Malachite1
Data
Mineral Data:Click here to view Bornite data
Locality Data:Click here to view Cape Rosier Mine (Callahan Mine; Rosier Consolidated Mine), Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:31380
Long-form Identifier:1:3:31380:7
GUID (UUID V4):0
Nearest other occurrences of Bornite
5.8km (3.6 miles) ⓘTapley Mine, Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA
16.4km (10.2 miles) ⓘBlue Hill mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
16.9km (10.5 miles) ⓘTwin Lead Mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
19.0km (11.8 miles) ⓘGranger Mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
90.1km (56.0 miles) ⓘRoute 1 Road Cut, Woolwich, Sagadahoc County, Maine, USA
References
King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.
 
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