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Augite from
Shonkin Sag laccolith, Highwood Mountains, Chouteau County, Montana, USA


Classification
Species:Augite
Formula:(CaxMgyFez)(Mgy1Fez1)Si2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Augite data
Locality Data:Click here to view Shonkin Sag laccolith, Highwood Mountains, Chouteau County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:784276
Long-form Identifier:1:3:784276:4
GUID (UUID V4):0
Nearest other occurrences of Augite
9.9km (6.1 miles) ⓘSquare Butte, Highwood Mountains, Chouteau County, Montana, USA
74.9km (46.6 miles) ⓘYogo Gulch, Yogo District, Little Belt Mountains, Judith Basin County, Montana, USA
References
A differentiated alkaline intrusion, Highwood Mountains, Montana", Rocky Mountain Section of the Geological Society of America, Stanley S. Beus
W. P. Nash, Lawrence M. Monson, (1987) "Shonkin Sag laccolith
Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825
 
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