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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Native Copper from
National Mine, Rockland, Ontonagon County, Michigan, USA


08425530017272055135787.jpg
Native Copper, etc.

National Mine, Rockland, Ontonagon County, Michigan, USA
01636810017272041723228.jpg
Native Copper

National Mine, Rockland, Ontonagon County, Michigan, USA
07130830017363249779194.jpg
Native Copper, etc.

National Mine, Rockland, Ontonagon County, Michigan, USA
05252090017363634799347.jpg
Native Copper

National Mine, Rockland, Ontonagon County, Michigan, USA
09776620017363634795659.jpg
Native Copper, etc.

National Mine, Rockland, Ontonagon County, Michigan, USA
01636810017272041723228.jpg
Native Copper

National Mine, Rockland, Ontonagon County, Michigan, USA
03517390017363634801834.jpg
Native Copper, etc.

National Mine, Rockland, Ontonagon County, Michigan, USA
05252090017363634799347.jpg
Native Copper

National Mine, Rockland, Ontonagon County, Michigan, USA
08425530017272055135787.jpg
Native Copper, etc.

National Mine, Rockland, Ontonagon County, Michigan, USA
01636810017272041723228.jpg
Native Copper

National Mine, Rockland, Ontonagon County, Michigan, USA
07130830017363249779194.jpg
Native Copper, etc.

National Mine, Rockland, Ontonagon County, Michigan, USA
05252090017363634799347.jpg
Native Copper

National Mine, Rockland, Ontonagon County, Michigan, USA
Locality type:Mine
Classification
Species:Native Copper
Formula:Cu
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Silver4
Malachite2
Calcite2
Chrysocolla1
Quartz1
Cuprite1
Epidote1
Data
Mineral Data:Click here to view Native Copper data
Locality Data:Click here to view National Mine, Rockland, Ontonagon County, Michigan, USA
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:100747
Long-form Identifier:1:3:100747:3
GUID (UUID V4):0
Nearest other occurrences of Native Copper
0.3km (0.2 miles) ⓘMinesota Mine, Rockland, Ontonagon County, Michigan, USA
0.4km (0.3 miles) ⓘVulcan Mine, Ontonagon County, Michigan, USA
0.5km (0.3 miles) ⓘPeninsula Mine, Ontonagon County, Michigan, USA
1.2km (0.8 miles) ⓘRockland Mine, Rockland, Ontonagon County, Michigan, USA
1.6km (1.0 miles) ⓘMichigan Mine, Rockland, Ontonagon County, Michigan, USA
2.2km (1.4 miles) ⓘBumblebee Mine, Rockland, Ontonagon County, Michigan, USA
2.8km (1.7 miles) ⓘLake Superior Mine, Ontonagon County, Michigan, USA
2.8km (1.7 miles) ⓘOntonagon River, Ontonagon County, Michigan, USA
3.0km (1.9 miles) ⓘFlintsteel Mine, Mass City, Ontonagon County, Michigan, USA
3.9km (2.4 miles) ⓘFlintsteel River Mine, Ontonagon County, Michigan, USA
References
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.112
 
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