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
Hill Prospect, Grants Pass Mining District, Josephine County, Oregon, USA


Locality type:Prospect
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Hill Prospect, Grants Pass Mining District, Josephine County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:471968
Long-form Identifier:1:3:471968:7
GUID (UUID V4):0
Nearest other occurrences of Quartz
8.8km (5.4 miles) ⓘCopper Bell (Copper Standard), Galice Mining District, Josephine County, Oregon, USA
12.5km (7.8 miles) ⓘBlack Bear Mine (Dan Green Mine), Galice Mining District, Josephine County, Oregon, USA
14.2km (8.8 miles) ⓘTwelve O'Clock Mine, Greenback Mining District (Upper Grave Creek Mining District), Josephine County, Oregon, USA
14.8km (9.2 miles) ⓘCalifornia Mine (Wheeler Tunnel; Hercules Mining Company), Mount Reuben Mining District, Josephine County, Oregon, USA
14.9km (9.3 miles) ⓘBeth Prospect, Galice Mining District, Josephine County, Oregon, USA
15.1km (9.4 miles) ⓘYellowhorn Mine (Jim Blaine Group), Greenback Mining District (Upper Grave Creek Mining District), Josephine County, Oregon, USA
15.4km (9.5 miles) ⓘMurray Mine (Britton Manganese), Grants Pass Mining District, Josephine County, Oregon, USA
15.5km (9.6 miles) ⓘSaint Patrick Mine, Galice Mining District, Josephine County, Oregon, USA
15.7km (9.8 miles) ⓘOnion Falls Copper (Coons Copper-Gold Ledge; Hamlin Prospect), Pickett Creek Mining District, Josephine County, Oregon, USA
16.1km (10.0 miles) ⓘGreenback Mine, Greenback Mining District (Upper Grave Creek Mining District), Josephine County, Oregon, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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