Corsi's classification: | Class 15. Porphyry; Species 1.; ii. Italian porphyries |
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Corsi's text: | 196.11/ S26.3 Porfido di Siberia |
Corsi's classification: | Class 15. Porphyry; Species 1.; ii. Italian porphyries |
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Corsi's text: | 196.11/ S26.3 Porfido di Siberia |