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Prehnite from
Cape Mine, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA


Locality type:Mine
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Analcime1
K Feldspar1
- var Adularia1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Cape Mine, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:172575
Long-form Identifier:1:3:172575:9
GUID (UUID V4):0
Nearest other occurrences of Prehnite
0.0km (0.0 miles) ⓘStar Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
0.9km (0.5 miles) ⓘClark Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
1.9km (1.2 miles) ⓘManganese Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
3.8km (2.4 miles) ⓘNew York and Michigan Exploration, Grant Township, Keweenaw County, Michigan, USA
4.0km (2.5 miles) ⓘCopper Harbor, Grant Township, Keweenaw County, Michigan, USA
4.6km (2.9 miles) ⓘLac La Belle exploration, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
5.0km (3.1 miles) ⓘAetna Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
5.4km (3.4 miles) ⓘVulcan Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
7.1km (4.4 miles) ⓘPoint Prospect, Grant Township, Keweenaw County, Michigan, USA
7.2km (4.4 miles) ⓘHard Rock fissure, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
References
R&M 78:3 p180
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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