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
Deer Flat Area, Index Mining District, Snohomish County, Washington, USA


Locality type:Area
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Albite
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Deer Flat Area, Index Mining District, Snohomish County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:93241
Long-form Identifier:1:3:93241:7
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.5km (0.9 miles) ⓘHelena Prospects, Index Mining District, Snohomish County, Washington, USA
2.5km (1.5 miles) ⓘIron Peak Roadcuts, Trout Creek, Index Mining District, Snohomish County, Washington, USA
3.1km (1.9 miles) ⓘNorth Star Mine, Index Mining District, Snohomish County, Washington, USA
3.7km (2.3 miles) ⓘSunset Falls Railroad Cut, Index Mining District, Snohomish County, Washington, USA
3.9km (2.4 miles) ⓘCopper Belle Mine, Reiter, Index Mining District, Snohomish County, Washington, USA
4.1km (2.5 miles) ⓘRed Cross Prospect, Reiter, Index Mining District, Snohomish County, Washington, USA
4.6km (2.8 miles) ⓘIndex Bornite Prospect, Index Mining District, Snohomish County, Washington, USA
5.1km (3.2 miles) ⓘLake Serene Mine, Index Mining District, Snohomish County, Washington, USA
5.6km (3.5 miles) ⓘLake Serene, Snohomish County, Washington, USA
6.4km (4.0 miles) ⓘEthel Mine, Index Mining District, Snohomish County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.38
 
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