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Muscovite from
Vale das Gatas Mines, S. Lourenço de Riba Pinhão and Souto Maior, Sabrosa, Vila Real District, Portugal

Description
Comments:	Replaces biotite in granite. Quartz/muscovite symplectites (post-magmatic growth in granite).
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	Bull. Minéral. , 1987, 110, pp. 613-622.
Data
Mineral Data:	Click here to view Muscovite data
Locality Data:	Click here to view Vale das Gatas Mines, S. Lourenço de Riba Pinhão and Souto Maior, Sabrosa, Vila Real District, Portugal

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