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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Chalcopyrite from
Brown Bear Mine, Cedar River Mining District, King County, Washington, USA


Locality type:Claim
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Brown Bear Mine, Cedar River Mining District, King County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:307757
Long-form Identifier:1:3:307757:3
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
1.8km (1.1 miles) ⓘScout Patrol Peak, Hansen Creek area, Snoqualmie Mining District, King County, Washington, USA
2.0km (1.2 miles) ⓘBear Creek Mine, Cedar River Mining District, King County, Washington, USA
2.8km (1.7 miles) ⓘChristina Claim, Cedar River Mining District, King County, Washington, USA
4.3km (2.7 miles) ⓘHumpback Mountain, Hansen Creek area, Snoqualmie Mining District, King County, Washington, USA
8.4km (5.2 miles) ⓘCarmack Mine, Snoqualmie Mining District, King County, Washington, USA
12.2km (7.6 miles) ⓘGranite Lakes, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
14.6km (9.1 miles) ⓘHorseshoe Mine, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
15.2km (9.4 miles) ⓘGifford Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
18.9km (11.8 miles) ⓘTinhorn Mine, Gold Creek, Kittitas County, Washington, USA
19.4km (12.0 miles) ⓘGold Creek, Gold Creek, Kittitas County, Washington, USA
References
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.p.56
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.35
 
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