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
Pedro Claim, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA


Locality type:Claim
Classification
Species:'Tetrahedrite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)Sb4S12S
Habit:tetrahedral to a few cm
Colour:grey
Luminescent properties:none
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Very Rare
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tetrahedrite Subgroup data
Locality Data:Click here to view Pedro Claim, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:92073
Long-form Identifier:1:3:92073:1
GUID (UUID V4):0
Nearest other occurrences of Tetrahedrite Subgroup
2.4km (1.5 miles) ⓘSpruce Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
7.3km (4.5 miles) ⓘTinhorn Mine, Gold Creek, Kittitas County, Washington, USA
8.8km (5.4 miles) ⓘDutch Miller Mine, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
15.6km (9.7 miles) ⓘCleopatra Mine, Miller River Mining District, King County, Washington, USA
17.2km (10.7 miles) ⓘBear Basin Mines, Buena Vista Mining District, King County, Washington, USA
17.2km (10.7 miles) ⓘConey Basin Mine, Miller River Mining District, King County, Washington, USA
18.9km (11.7 miles) ⓘNapco Prospect, Buena Vista Mining District, King County, Washington, USA
23.3km (14.5 miles) ⓘApex Mine, Money Creek Mining District, King County, Washington, USA
24.2km (15.0 miles) ⓘDamon and Pythias Mine, Money Creek Mining District, King County, Washington, USA
26.2km (16.3 miles) ⓘHumbug Claim, Van Epps Pass, Leavenworth Mining District, Chelan County, Washington, USA
References
Rick Dilhoff personal collection
 
and/or  
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