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Prehnite from
Isle Royal Mines, Portage Township, Houghton County, Michigan, USA


07163790017362324153898.jpg
Prehnite, etc.

Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
07734930017362324166247.jpg
Prehnite

Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
07163790017362324153898.jpg
Prehnite, etc.

Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
09340120017361020446951.jpg
Prehnite

Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
07163790017362324153898.jpg
Prehnite, etc.

Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
09340120017361020446951.jpg
Prehnite

Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
Locality type:Mine
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Copper2
Quartz1
Hematite1
Epidote1
Pumpellyite Subgroup1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:70200
Long-form Identifier:1:3:70200:1
GUID (UUID V4):0
Localities for Prehnite in this Region
Isle Royal No. 4 shaft, Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
Isle Royal No. 5 shaft, Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
Isle Royal No. 6 shaft, Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
Nearest other occurrences of Prehnite
0.0km (0.0 miles) ⓘIsle Royal No. 4 shaft, Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
0.6km (0.4 miles) ⓘIsle Royal No. 5 shaft, Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
1.2km (0.7 miles) ⓘIsle Royal No. 6 shaft, Isle Royal Mines, Portage Township, Houghton County, Michigan, USA
1.6km (1.0 miles) ⓘHuron Creek occurrences, Houghton, Houghton County, Michigan, USA
2.0km (1.3 miles) ⓘIsle Royal No. 1 shaft, Isle Royal Mines, Houghton, Houghton County, Michigan, USA
3.6km (2.2 miles) ⓘAtlantic Mine, Atlantic Mine, Adams Township, Houghton County, Michigan, USA
3.8km (2.4 miles) ⓘHancock Mine, Hancock, Houghton County, Michigan, USA
4.4km (2.7 miles) ⓘQuincy Mine, Quincy Township, Houghton County, Michigan, USA
4.5km (2.8 miles) ⓘBaltic Mine, Baltic, Adams Township, Houghton County, Michigan, USA
4.9km (3.1 miles) ⓘPewabic Mine, Pewabic, Franklin Township, Houghton County, Michigan, USA
References
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.109
 
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