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Anorthoclase from
Mount Scott granite occurrence, Mount Scott, Wichita Mountains, Comanche County, Oklahoma, USA


Locality type:Occurrence
Classification
Species:Albite var: Anorthoclase
Formula:(Na,K)AlSi3O8
Comments:Ovoid phenocrysts of :
- Sodic-anorthoclase exsolving to antiperthite
- Potassic-anorthoclase exsolving to perthite
These phenocrysts are rimmed by a layer of plagioclase (albite/oligoclase), if the matrix is not granophyric (the plagioclase is unstable in presence of high fF2).
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Anorthoclase data
Locality Data:Click here to view Mount Scott granite occurrence, Mount Scott, Wichita Mountains, Comanche County, Oklahoma, USA
Data Identifiers
Mindat Occurrence Record ID:305924
Long-form Identifier:1:3:305924:1
GUID (UUID V4):0
Nearest other occurrences of Anorthoclase
12.3km (7.7 miles) ⓘWichita Mountains, Comanche County, Oklahoma, USA
References
J.D. Price et al. , Eur. J. Mineral. , 1996, 8, pp. 435-451.
 
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