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
North Star Mine (Northstar Mine), Kofa Mining District, Yuma County, Arizona, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Comments:Crystals.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Adularia
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view North Star Mine (Northstar Mine), Kofa Mining District, Yuma County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:245643
Long-form Identifier:1:3:245643:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
3.1km (1.9 miles) ⓘKing of Arizona Mine, Kofa Mining District, Yuma County, Arizona, USA
9.6km (5.9 miles) ⓘC.O.D. Mine (C.O.D. prospect; C.O.D. group of claims), Red Raven Wash, Ocotillo Mine Group, Yuma County, Arizona, USA
9.7km (6.0 miles) ⓘRegal prospect (Regal group prospect), Yuma County, Arizona, USA
11.5km (7.2 miles) ⓘGeyser Mine (Silent King Mine), Geyser lode, Ocotillo Mine Group, Yuma County, Arizona, USA
11.6km (7.2 miles) ⓘRand prospect, Geyser lode, Ocotillo Mine Group, Yuma County, Arizona, USA
17.1km (10.6 miles) ⓘBlodgett Mine (Blodgett prospect), Engesser Pass, Tank Mountains Mining District, Tank Mountains, Yuma County, Arizona, USA
21.6km (13.4 miles) ⓘSheep Tanks Mine (Sheep Tank Mine; Resolution group), Sheep Tanks Mining District, Little Horn Mountains, Yuma County, Arizona, USA
28.6km (17.8 miles) ⓘCrystal Peak, Plomosa Mining District, Plomosa Mountains, La Paz County, Arizona, USA
29.0km (18.0 miles) ⓘCrystal Hill, La Paz County, Arizona, USA
30.9km (19.2 miles) ⓘBig Eye Mine, Big Eye Mine group, Slumgullion Pass, Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
References
Wilson, E.D. (1933), AZ Bur. Mines Bull. 134: 113-116
 
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