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
Birch Ridge Occurrence (Birch Mountain Quartz Core Pegmatite; Birch Mountain Silica; Birch Mtn. Quartz), Clearwater County, Idaho, USA


Locality type:Occurrence
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Birch Ridge Occurrence (Birch Mountain Quartz Core Pegmatite; Birch Mountain Silica; Birch Mtn. Quartz), Clearwater County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:445009
Long-form Identifier:1:3:445009:2
GUID (UUID V4):0
Nearest other occurrences of Quartz
10.3km (6.4 miles) ⓘChamberlain Meadows Copper prospect, Shoshone County, Idaho, USA
11.3km (7.0 miles) ⓘClearwater Gold and Copper prospect, Shoshone County, Idaho, USA
15.1km (9.4 miles) ⓘRiley prospect, Shoshone County, Idaho, USA
28.2km (17.5 miles) ⓘSnowbird Mine, Cedar Creek Mining District, Mineral County, Montana, USA
28.5km (17.7 miles) ⓘGranite Peak prospects, St. Joe Mining District, Shoshone County, Idaho, USA
29.0km (18.0 miles) ⓘQuartz Creek Silica Rock Deposit, Cedar Creek Mining District, Mineral County, Montana, USA
32.3km (20.0 miles) ⓘAngle Point, Shoshone County, Idaho, USA
36.8km (22.9 miles) ⓘLime Gulch Prospect (Magi Mine), Mineral County, Montana, USA
39.0km (24.2 miles) ⓘConrad's Crossing prospect, St. Joe Mining District, Shoshone County, Idaho, USA
41.1km (25.6 miles) ⓘSilver Bell Property, Mineral County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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