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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Magnetite from
Mount Roosevelt, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA


Locality type:Mountain
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Mount Roosevelt, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:192203
Long-form Identifier:1:3:192203:5
GUID (UUID V4):0
Nearest other occurrences of Magnetite
3.6km (2.3 miles) ⓘChair Peak Skarn, Snoqualmie Mining District, King County, Washington, USA
7.3km (4.6 miles) ⓘGuye Mine, Snoqualmie Mining District, King County, Washington, USA
10.7km (6.7 miles) ⓘRainy Mine, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
13.5km (8.4 miles) ⓘGreen Mountain/Bessemer Ridge, Snoqualmie Mining District, King County, Washington, USA
14.1km (8.8 miles) ⓘThree Brothers Zone, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
19.6km (12.2 miles) ⓘBlack Dike Prospect, Miller River Mining District, King County, Washington, USA
24.1km (15.0 miles) ⓘNorth Fork Copper Deposit, Buena Vista Mining District, King County, Washington, USA
28.1km (17.5 miles) ⓘMaloney Quarries, Grotto, King County, Washington, USA
30.5km (18.9 miles) ⓘAnderson Mine, Baring Mining District, King County, Washington, USA
32.7km (20.3 miles) ⓘGoat Mountain Mine, Cle Elum River, Cle Elum Mining District, Kittitas County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.86
Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc. 567pp.
 
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