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
Middleport Mine, Colville Mining District, Stevens County, Washington, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Middleport Mine, Colville Mining District, Stevens County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:150094
Long-form Identifier:1:3:150094:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
9.4km (5.8 miles) ⓘLongshot Mine, Colville Mining District, Stevens County, Washington, USA
9.5km (5.9 miles) ⓘAladdin Mine, Deep Creek Area, Northport Mining District, Stevens County, Washington, USA
10.9km (6.8 miles) ⓘBurrus Mine, Deep Creek Area, Northport Mining District, Stevens County, Washington, USA
11.8km (7.3 miles) ⓘMorning Mine, Deep Creek Area, Northport Mining District, Stevens County, Washington, USA
15.3km (9.5 miles) ⓘGalena Knob Mine, Colville Mining District, Stevens County, Washington, USA
15.9km (9.9 miles) ⓘTimber Mountain, Pend Oreille County, Washington, USA
16.1km (10.0 miles) ⓘCopper King Mine, Deep Creek Area, Northport Mining District, Stevens County, Washington, USA
18.5km (11.5 miles) ⓘOld Dominion Mine, Colville Mining District, Stevens County, Washington, USA
18.7km (11.6 miles) ⓘVan Stone Mine, Colville Mining District, Stevens County, Washington, USA
19.3km (12.0 miles) ⓘOre Cache Mine, Colville Mining District, Stevens County, Washington, USA
References
Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources
 
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