porphyritic texture

alkali feldspar phenocrysts in monzogranite — Sant'Andrea is an open-air museum of igneous geology.

Cosa sono i 'sassi bianchi' incastonati nelle rocce di Sant'Andrea (Isola d'Elba)?

s.papeschi
08/01/202209/01/2022
2 commenti
On the rocks

I was a student the first time I visited the outcrops of Sant’Andrea in the far 2011. We must have looked really weird: a class… Leggi tutto »Cosa sono i 'sassi bianchi' incastonati nelle rocce di Sant'Andrea (Isola d'Elba)?

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