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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Quartz-monzonite from
Helena District, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA


Locality type:Mining District
Classification
Type:Quartz-monzonite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz-monzonite data
Locality Data:Click here to view Helena District, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:1058310
Long-form Identifier:1:3:1058310:4
GUID (UUID V4):0
Nearest other occurrences of Quartz-monzonite
4.4km (2.7 miles) ⓘYellowjacket Mine, Helena Mining District, Jefferson County, Montana, USA
5.2km (3.2 miles) ⓘBig Indian Mine, Helena Mining District, Jefferson County, Montana, USA
8.4km (5.2 miles) ⓘRoosevelt Mine, Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
8.5km (5.3 miles) ⓘMary Tait Prospect, Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
8.8km (5.5 miles) ⓘMuskegon Mine, Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
8.9km (5.5 miles) ⓘFree Coinage Mine (Little Alma Mine), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
8.9km (5.6 miles) ⓘUnknown Pb-Ag-Cu-Zn mine, Sheep Mountain, Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
9.0km (5.6 miles) ⓘSam Gaty Mine (Doctor Steele; Franklin Mine; No. 1 Shaft), Sevenmile-Scratchgravel Mining District, Lewis and Clark County, Montana, USA
9.0km (5.6 miles) ⓘMeadow Mine (Haab), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
9.7km (6.1 miles) ⓘLittle Nell Mine (Little Nellie Mine), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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