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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Ankerite from
Robinson and Bowman; Lost Frontier Prospect, Hope Mining District, Kenai Peninsula Borough, Alaska, USA


Locality type:Prospect
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ankerite data
Locality Data:Click here to view Robinson and Bowman; Lost Frontier Prospect, Hope Mining District, Kenai Peninsula Borough, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:588495
Long-form Identifier:1:3:588495:7
GUID (UUID V4):0
Nearest other occurrences of Ankerite
9.4km (5.8 miles) ⓘHirshey-Lucky Strike; Lucky Strike; Swetmann Mine, Hope Mining District, Kenai Peninsula Borough, Alaska, USA
55.6km (34.5 miles) ⓘGolden Giant; Collins; Fish and Barry Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
70.1km (43.6 miles) ⓘHummer; Everson; Harris and Parker Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USA
88.8km (55.2 miles) ⓘMatanuska Valley, Matanuska-Susitna Borough, Alaska, USA
References
(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey
 
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