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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Chalcedony from
Tonopah-Belmont Mine, Belmont Mountain, Tonopah, Osborn Mining District, Maricopa County, Arizona, USA


03414780017370097532732.jpg
Chalcedony, etc.

Tonopah-Belmont Mine, Belmont Mountain, Tonopah, Osborn Mining District, Maricopa County, Arizona, USA
03414780017370097532732.jpg
Chalcedony, etc.

Tonopah-Belmont Mine, Belmont Mountain, Tonopah, Osborn Mining District, Maricopa County, Arizona, USA
08450390017370097536242.jpg
Chalcedony, etc.

Tonopah-Belmont Mine, Belmont Mountain, Tonopah, Osborn Mining District, Maricopa County, Arizona, USA
Locality type:Mine
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Quartz1
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Tonopah-Belmont Mine, Belmont Mountain, Tonopah, Osborn Mining District, Maricopa County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:1237994
Long-form Identifier:1:3:1237994:9
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
7.5km (4.7 miles) ⓘMoon Anchor Mine, Hummingbird Springs, Osborn Mining District, Maricopa County, Arizona, USA
15.7km (9.8 miles) ⓘDead Horse Wash, Maricopa County, Arizona, USA
20.9km (13.0 miles) ⓘVulture, Vulture Mining District, Maricopa County, Arizona, USA
21.1km (13.1 miles) ⓘValley View Mine (Wheeler claims; Yarnell group; Prieta Chinda Mine; Manganese Development Mine), Aguila Mining District, Maricopa County, Arizona, USA
25.9km (16.1 miles) ⓘNorth slope, Saddle Mountain, Maricopa County, Arizona, USA
30.1km (18.7 miles) ⓘBlack Butte Uranium Corporation claim (Black Butte Uranium claim), Big Horn Mining District, Maricopa County, Arizona, USA
45.0km (28.0 miles) ⓘFourth of July Peak (Fourth of July Butte), Hassayampa, Maricopa County, Arizona, USA
46.4km (28.8 miles) ⓘOro Grande Mine, Black Rock Mining District, Yavapai County, Arizona, USA
48.7km (30.3 miles) ⓘWhite Jumbo prospect, White Picacho Mining District, Yavapai County, Arizona, USA
59.9km (37.2 miles) ⓘUnnamed Manganese prospects, Eagletail Mts (Cemetery Ridge) area, Yuma County, Arizona, USA
References
Luetcke, Rolf (n.d.) Personal communication.
 
and/or  
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