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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Quartzite from
O'Neil Gulch Prospect (Rattlesnake Claim Group), North Fork Area, Lemhi County, Idaho, USA


Locality type:Prospect
Classification
Type:Quartzite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartzite data
Locality Data:Click here to view O'Neil Gulch Prospect (Rattlesnake Claim Group), North Fork Area, Lemhi County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:1052804
Long-form Identifier:1:3:1052804:6
GUID (UUID V4):0
Nearest other occurrences of Quartzite
3.0km (1.9 miles) ⓘWhite Azalea Claim, North Fork Area, Lemhi County, Idaho, USA
5.9km (3.7 miles) ⓘRed Bird Lodes Occurrence, Eureka Mining District, Lemhi County, Idaho, USA
6.9km (4.3 miles) ⓘCopper Queen Occurrence (EZ Copper), North Fork Area, Lemhi County, Idaho, USA
7.4km (4.6 miles) ⓘSparkplug Kyanite Prospect, Eureka Mining District, Lemhi County, Idaho, USA
7.4km (4.6 miles) ⓘLang Claim, Eureka Mining District, Lemhi County, Idaho, USA
8.1km (5.0 miles) ⓘRathburn Gulch Prospect, North Fork Area, Lemhi County, Idaho, USA
9.0km (5.6 miles) ⓘRocket - Dolly Group (Dolly Claims; Little Maud; Rocket; Seloma), Eureka Mining District, Lemhi County, Idaho, USA
9.1km (5.7 miles) ⓘForget - Me - Not Prospect (Bird Creek Prospect), Eureka Mining District, Lemhi County, Idaho, USA
9.3km (5.8 miles) ⓘSunrise Prospect, North Fork Area, Lemhi County, Idaho, USA
9.6km (5.9 miles) ⓘNineteen-Hundred Lode Occurrence, North Fork Area, Lemhi County, Idaho, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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