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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Porphyry from
Porphyry Dike Mine, Vaughn Mining District (Rimini Mining District), Lewis and Clark County, Montana, USA


Locality type:Mine
Classification
Type:Porphyry
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Porphyry data
Locality Data:Click here to view Porphyry Dike Mine, Vaughn Mining District (Rimini Mining District), Lewis and Clark County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:1085920
Long-form Identifier:1:3:1085920:1
GUID (UUID V4):0
Nearest other occurrences of Porphyry
13.6km (8.4 miles) ⓘElkador (Little Nancy), Colorado Mining District (Prickly Pear Mining District; Corbin Mining District), Jefferson County, Montana, USA
22.2km (13.8 miles) ⓘAnderson Prospect, Blue Cloud Mining District, Lewis and Clark County, Montana, USA
27.9km (17.4 miles) ⓘKit Carson Mine, Lowland Mining District, Jefferson County, Montana, USA
28.5km (17.7 miles) ⓘWarm Springs, Jefferson County, Montana, USA
31.2km (19.4 miles) ⓘWhite Pine Mine (Genevieve), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
32.1km (20.0 miles) ⓘMcKay Mine, Ophir Mining District, Powell County, Montana, USA
34.1km (21.2 miles) ⓘCyclone Mine, Ophir Mining District, Powell County, Montana, USA
43.6km (27.1 miles) ⓘVosburg Mine (Vossburg), Beaver Creek Mining District (Winston Mining District), Broadwater County, Montana, USA
46.4km (28.8 miles) ⓘGreen Monster Occurrence (Bull Run; Benich), Boulder Mountains Area, Silver Bow County, Montana, USA
50.9km (31.6 miles) ⓘG. M. Prospect, Flint Creek Range Area, Powell County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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