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Prehnite from
Hard Rock fissure, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA


Locality type:Fissure
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Hard Rock fissure, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:626557
Long-form Identifier:1:3:626557:1
GUID (UUID V4):0
Nearest other occurrences of Prehnite
2.1km (1.3 miles) ⓘAetna Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
3.5km (2.2 miles) ⓘWashington Mine, Eagle Harbor Township, Keweenaw County, Michigan, USA
3.9km (2.5 miles) ⓘMedora Mine, Mandan, Grant Township, Keweenaw County, Michigan, USA
4.8km (3.0 miles) ⓘMandan Mine, Mandan, Grant Township, Keweenaw County, Michigan, USA
5.9km (3.7 miles) ⓘResolute Mine, Mandan, Grant Township, Keweenaw County, Michigan, USA
6.1km (3.8 miles) ⓘBete Grise Bay, Bete Grise, Grant Township, Keweenaw County, Michigan, USA
6.5km (4.1 miles) ⓘCopper Harbor, Grant Township, Keweenaw County, Michigan, USA
7.1km (4.4 miles) ⓘStar Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
7.2km (4.4 miles) ⓘCape Mine, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
7.3km (4.5 miles) ⓘManganese Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
References
Rosemeyer, Tom (2009) Copper-bearing Fissure Veins, Keweenaw County, Michigan, Lake Superior Native Copper District (Part 1) Rocks & Minerals, 84 (4) 298-306 doi:10.3200/rmin.84.4.298-306part1
 
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