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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Pyrite from
Doktor Kalloch Mine, Barker Mining District, Judith Basin County, Montana, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Doktor Kalloch Mine, Barker Mining District, Judith Basin County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:497558
Long-form Identifier:1:3:497558:8
GUID (UUID V4):0
Nearest other occurrences of Pyrite
0.8km (0.5 miles) ⓘMoulton Mine (T. W. Mine; Tiger Mine; Clendennin Group), Hughesville, Barker Mining District, Judith Basin County, Montana, USA
0.8km (0.5 miles) ⓘBlock P Mine, Hughesville, Barker Mining District, Judith Basin County, Montana, USA
0.8km (0.5 miles) ⓘTiger Mine, Hughesville, Barker Mining District, Judith Basin County, Montana, USA
1.7km (1.0 miles) ⓘHughesville occurrence, Barker Mining District, Judith Basin County, Montana, USA
2.0km (1.3 miles) ⓘBarker Mine, Barker, Barker Mining District, Judith Basin County, Montana, USA
12.7km (7.9 miles) ⓘSilver Dyke Mine, Neihart Mining District (Montana Mining District), Cascade County, Montana, USA
13.2km (8.2 miles) ⓘSavage Mine, Neihart Mining District (Montana Mining District), Cascade County, Montana, USA
17.4km (10.8 miles) ⓘDacotah Mine (Dakota Mine), Neihart Mining District (Montana Mining District), Cascade County, Montana, USA
18.1km (11.3 miles) ⓘMoulton Mine (Rochester; Moulton Group; Unity; Unity & Rochester), Neihart Mining District (Montana Mining District), Cascade County, Montana, USA
18.3km (11.4 miles) ⓘMoulton Mine (Compromise), Neihart Mining District (Montana Mining District), Cascade County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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