Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Quartz from
Eureka prospect, St. Joe Mining District, Shoshone County, Idaho, USA


Locality type:Prospect
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Eureka prospect, St. Joe Mining District, Shoshone County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:609397
Long-form Identifier:1:3:609397:6
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.1km (0.7 miles) ⓘSt. Joe Quartz prospect, St. Joe Mining District, Shoshone County, Idaho, USA
1.2km (0.8 miles) ⓘBluff Creek Copper claim, St. Joe Mining District, Shoshone County, Idaho, USA
5.7km (3.6 miles) ⓘConrad's Crossing prospect, St. Joe Mining District, Shoshone County, Idaho, USA
11.1km (6.9 miles) ⓘRevenge prospect, St. Joe Mining District, Shoshone County, Idaho, USA
11.3km (7.0 miles) ⓘWard prospect, St. Joe Mining District, Shoshone County, Idaho, USA
12.4km (7.7 miles) ⓘAngle Point, Shoshone County, Idaho, USA
12.8km (8.0 miles) ⓘBird Creek, Shoshone County, Idaho, USA
13.7km (8.5 miles) ⓘDeer Creek Mine, St. Regis Mining District (Deer Creek Mining District; Ward Mining District), Mineral County, Montana, USA
15.4km (9.6 miles) ⓘAladdin Mine, St. Regis Mining District (Deer Creek Mining District; Ward Mining District), Mineral County, Montana, USA
16.2km (10.1 miles) ⓘBlue Bird claim, St. Joe Mining District, Shoshone County, Idaho, USA
References
USGS Bull 470
 
and/or  
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