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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Tetrahedrite Subgroup from
Feldt Prospect, Whitehorse Mountain, Darrington Mining District, Snohomish County, Washington, USA


Locality type:Prospect
Classification
Species:'Tetrahedrite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)Sb4S12S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tetrahedrite Subgroup data
Locality Data:Click here to view Feldt Prospect, Whitehorse Mountain, Darrington Mining District, Snohomish County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:94850
Long-form Identifier:1:3:94850:6
GUID (UUID V4):0
Nearest other occurrences of Tetrahedrite Subgroup
8.3km (5.1 miles) ⓘMyrtle C Prospect, Gold Mountain, Darrington Mining District, Snohomish County, Washington, USA
9.1km (5.7 miles) ⓘGold Mountain Prospect, Gold Mountain, Darrington Mining District, Snohomish County, Washington, USA
11.6km (7.2 miles) ⓘLawrence Prospect, Skagit County, Washington, USA
14.4km (8.9 miles) ⓘConsolidated Prospect, Silverton Mining District, Snohomish County, Washington, USA
15.2km (9.5 miles) ⓘNew Seattle Prospect, Marten Creek, Silverton Mining District, Snohomish County, Washington, USA
15.5km (9.6 miles) ⓘSt. Louis and Jackson Mine, Deer Creek, Silverton Mining District, Snohomish County, Washington, USA
20.6km (12.8 miles) ⓘEverett Claim, Silverton, Silverton Mining District, Snohomish County, Washington, USA
22.4km (13.9 miles) ⓘ45 Mine, Williamson Creek, Sultan Mining District, Snohomish County, Washington, USA
22.9km (14.2 miles) ⓘEureka Claim, Silverton Mining District, Snohomish County, Washington, USA
23.7km (14.7 miles) ⓘBig Four Prospect, Silverton Mining District, Snohomish County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.57
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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