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Prehnite from
Unnamed Copper Mine, Knife River, Saint Louis County, Minnesota, USA


Locality type:Mine
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Copper10
Calcite8
Chalcocite6
Malachite4
Cuprite2
- var Chalcotrichite2
Hematite1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Unnamed Copper Mine, Knife River, Saint Louis County, Minnesota, USA
Data Identifiers
Mindat Occurrence Record ID:1582334
Long-form Identifier:1:3:1582334:4
GUID (UUID V4):0
Nearest other occurrences of Prehnite
1.7km (1.0 miles) Knife River, Saint Louis County, Minnesota, USA
2.2km (1.4 miles) Knife River, Lake County, Minnesota, USA
5.1km (3.2 miles) Big Sucker Creek, Saint Louis County, Minnesota, USA
9.3km (5.8 miles) French River, Saint Louis County, Minnesota, USA
11.8km (7.3 miles) Talmadge River, Saint Louis County, Minnesota, USA
13.6km (8.4 miles) Burlington Bay, Two Harbors, Lake County, Minnesota, USA
16.5km (10.3 miles) Stewart River, Lake County, Minnesota, USA
40.5km (25.1 miles) Buckley Quarry, Amnicon Falls, Douglas County, Wisconsin, USA
40.9km (25.4 miles) Percival copper prospects, Douglas County, Wisconsin, USA
41.2km (25.6 miles) Chippewa Mine, Douglas County, Wisconsin, USA
References
Frank KarastiIdentified by Frank Karasti: Visual Identification
 
and/or  
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