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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Dumortierite from
Clip Mine, Clip, Hidden Valley, Silver Mining District, La Paz County, Arizona, USA


Locality type:Mine
Classification
Species:Dumortierite
Formula:Al(Al2O)(Al2O)2(SiO4)3(BO3)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dumortierite data
Locality Data:Click here to view Clip Mine, Clip, Hidden Valley, Silver Mining District, La Paz County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:4715
Long-form Identifier:1:3:4715:9
GUID (UUID V4):0
Nearest other occurrences of Dumortierite
8.6km (5.3 miles) ⓘClip Wash, Clip, Hidden Valley, Silver Mining District, La Paz County, Arizona, USA
10.0km (6.2 miles) ⓘClip, Hidden Valley, Silver Mining District, La Paz County, Arizona, USA
18.9km (11.7 miles) ⓘUnnamed Dumortierite occurrence [2], Picacho Peak, Picacho Mining District, Chocolate Mountains, Imperial County, California, USA
20.7km (12.9 miles) ⓘUnnamed Dumortierite occurrences [1], Ogilby, Imperial County, California, USA
23.1km (14.3 miles) ⓘIndian Pass placer, Indian Pass, Chocolate Mountains Mining District, Chocolate Mountains, Imperial County, California, USA
62.8km (39.0 miles) ⓘQuartzsite deposit, Quartzsite, La Paz County, Arizona, USA
65.0km (40.4 miles) ⓘDome Rock Mountains, La Paz County, Arizona, USA
References
Bancroft, Peter; Bricker, Garth (1990) Arizona's Silver Mining District. The Mineralogical Record, 21 (2). p.151-168.
 
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