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Eiras Quarry (incl. Eiras de cima quarry), Sanfins, Valença do Minho, Viana do Castelo District, Portugal

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Albite : Na[AlSi3O8], Chamosite-Clinochlore Series

Eiras Quarry (incl. Eiras de cima quarry), Sanfins, Valença do Minho, Viana do Castelo District, Portugal

Albite floatter, coated by chamoisite.
Specimen size: 63mm.
 © nuno afonsoPhoto ID: 135192    View Count: 219

Orthoclase : K[AlSi3O8], Albite : Na[AlSi3O8], Quartz (Var: Smoky Quartz) : SiO2, Chamosite-Clinochlore Series

Eiras Quarry (incl. Eiras de cima quarry), Sanfins, Valença do Minho, Viana do Castelo District, Portugal

Floatter of orthoclase and albite, with some smoky quartz and chamoisite coatings.
Specimen size: 34mm.
 © nuno afonsoPhoto ID: 134966    View Count: 205
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