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
Bulldog tunnel (Bulldog shaft), Inspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration Mining District, Gila County, Arizona, USA


Locality type:Tunnel
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Bulldog tunnel (Bulldog shaft), Inspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration Mining District, Gila County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:211646
Long-form Identifier:1:3:211646:4
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
0.8km (0.5 miles) ⓘInspiration pit, Inspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration Mining District, Gila County, Arizona, USA
0.9km (0.6 miles) ⓘLive Oak shafts, Inspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration Mining District, Gila County, Arizona, USA
1.0km (0.6 miles) ⓘInspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration Mining District, Gila County, Arizona, USA
1.1km (0.7 miles) ⓘLive Oak pit, Inspiration Mine, Miami-Inspiration deposit, Inspiration, Miami-Inspiration Mining District, Gila County, Arizona, USA
9.0km (5.6 miles) ⓘOriginal Old Dominion Mine (Keystone Mine; Keystone deposit; Keystone vein; Original Old Dominion vein), Pinal Creek, Burch, Globe Hills Mining District, Gila County, Arizona, USA
10.0km (6.2 miles) ⓘOld Dominion Mine, Buffalo Hill, Old Dominion vein system, Globe, Globe Hills Mining District, Gila County, Arizona, USA
26.2km (16.3 miles) ⓘUnnamed Chalcedony occurrence [1], Unnamed volcanic knob, Potts Canyon, Pinal County, Arizona, USA
29.7km (18.5 miles) ⓘRay Mine, Scott Mountain, Pinal County, Arizona, USA
33.5km (20.8 miles) ⓘReymert Mine, Reymert Canyon, Mineral Mountain Mining District, Pinal County, Arizona, USA
41.1km (25.6 miles) ⓘChristmas Mine, Christmas, Banner Mining District, Gila County, Arizona, USA
References
Ransome, Frederick Leslie (1919) The copper deposits of Ray and Miami, Arizona. Professional Paper 115. US Geological Survey doi:10.3133/pp115
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 110.
Peterson, N.P. (1962), Geology and ore deposits of the Globe-Miami district, AZ, USGS PP 342
Sun, Ming-Sban (1963) The nature of chrysocolla from Inspiration Mine, Arizona. American Mineralogist, 48 (5-6) 649-658
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.pp.172-173
 
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