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
Marshall Glacier Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA


Locality type:Occurrence
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Marshall Glacier Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:585239
Long-form Identifier:1:3:585239:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
14.7km (9.2 miles) ⓘWortmanns Glacier Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
14.7km (9.2 miles) ⓘTownsend and Holland Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
14.9km (9.2 miles) ⓘUnnamed Prospect (ARDF - VA148; north of Thompson Pass), Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
16.4km (10.2 miles) ⓘUnnamed Occurrence (ARDF - CV051; east edge of Woodworth Glacier), Copper River Mining District, Valdez-Cordova Census Area, Alaska, USA
20.4km (12.7 miles) ⓘUnnamed Occurrence (ARDF - CV037; west of Wortmanns Glacier), Copper River Mining District, Valdez-Cordova Census Area, Alaska, USA
24.9km (15.4 miles) ⓘUnnamed Occurrence (ARDF - VA055; near foot of Tsina Glacier), Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
25.1km (15.6 miles) ⓘReis Prospect, Nelchina Mining District, Valdez-Cordova Census Area, Alaska, USA
25.8km (16.0 miles) ⓘKnowles; Knowles and Backman Property Prospect, Nelchina Mining District, Valdez-Cordova Census Area, Alaska, USA
26.4km (16.4 miles) ⓘPortland Prospect, Nelchina Mining District, Valdez-Cordova Census Area, Alaska, USA
26.7km (16.6 miles) ⓘEagle; Ellis; American Eagle Mine, Nelchina Mining District, Valdez-Cordova Census Area, Alaska, USA
References
(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey
 
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