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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Grouse Mountain Mine, Grants Pass Mining District, Josephine County, Oregon, USAi
Regional Level Types
Grouse Mountain MineMine
Grants Pass Mining DistrictMining District
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Type:
Mine
Mindat Locality ID:
64464
Long-form identifier:
mindat:1:2:64464:9
GUID (UUID V4):
0


Located in Section 27, Township 36 South, Range 5 West, Willamette Meridian.

Quartz veins along contact of greenstone and "granular igneous rock".

Ref: Oregon Metal Mines Handbook, 1952, Oregon Department of Geology and Mineral Industries: Bulletin No. 14-C, Vol. 2, Section 1 - Josephine Co., 2nd Edition, page 76.

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