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
Bulldozer Hill, Tiptop Mine group (Tiptop Camp prospects/mines), Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA


01255620017272283124009.jpg
Chalcedony, etc.

Bulldozer Hill, Tiptop Mine group, Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
01255620017272283124009.jpg
Chalcedony, etc.

Bulldozer Hill, Tiptop Mine group, Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
01255620017272283124009.jpg
Chalcedony, etc.

Bulldozer Hill, Tiptop Mine group, Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
Locality type:Hill
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chrysocolla1
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Bulldozer Hill, Tiptop Mine group (Tiptop Camp prospects/mines), Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:528198
Long-form Identifier:1:3:528198:5
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
3.4km (2.1 miles) ⓘOmega Mine, Monument Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
13.0km (8.1 miles) ⓘGreaterville Mining District, Pima County, Arizona, USA
13.1km (8.2 miles) ⓘSt. Louis Mine (Morning Star Mine; Isabel), St. Louis Gulch, Hughes Gulch, Greaterville placer deposits, Greaterville, Greaterville Mining District, Pima County, Arizona, USA
19.6km (12.2 miles) ⓘTotal Wreck Mine, Cienega Creek, The Narrows, Empire Mining District, Empire Mountains, Pima County, Arizona, USA
24.1km (15.0 miles) ⓘMarsh Station vicinity, Pima County, Arizona, USA
27.6km (17.2 miles) ⓘGlove Mine (Sunrise Mine), Glove Mine group (Zombie & Zeco claims; Festiago-Franklin; Blacksmith adit), Cottonwood Canyon, Tyndall Mining District, Santa Cruz County, Arizona, USA
41.3km (25.7 miles) ⓘUnnamed Quartz occurrence, Cochise County, Arizona, USA
41.7km (25.9 miles) ⓘSentinel Peak area, Tucson, Amole Mining District, Tucson Mountains, Pima County, Arizona, USA
46.8km (29.1 miles) ⓘHardshell Mine, Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
47.4km (29.4 miles) ⓘSalvador Mine (Salvadore Mine; San Salvador Mine), Hermosa group, Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
References
P Cristofono collection, 2008
 
and/or  
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