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
Old Nell Mine, Covada Mining District (Enterprise Mining District), Ferry 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 Old Nell Mine, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:308201
Long-form Identifier:1:3:308201:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.2km (0.1 miles) ⓘBlack Tail Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
0.5km (0.3 miles) ⓘButterfly Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
0.8km (0.5 miles) ⓘMessenger Mine, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
0.9km (0.5 miles) ⓘBlue Bird Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
1.0km (0.6 miles) ⓘPerry Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
1.1km (0.7 miles) ⓘBig Chief Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
1.3km (0.8 miles) ⓘSilver Crown Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
1.3km (0.8 miles) ⓘRosario Prospect, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
1.4km (0.9 miles) ⓘLongstreet Mine, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
1.4km (0.9 miles) ⓘJohnny Boy Claim, Covada Mining District (Enterprise Mining District), Ferry County, Washington, USA
References
p.47
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.
 
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