Corsi 790, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History
| OUMNH Number: | 790 |
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| Name and quarry location: | Porfido Trentino, porfido Atesino, from Bolzano area, Trentino-Alto Adige, Italy |
| Geological description: | Pophyritic rhyolite with phenocrysts of quartz, feldspar and biotite. |
| Comments: | This porphyry, an ignimbrite deposit from the Permian Atesino-Cima d'Asta volcanic complex, is also known as porfido Atesino. It is one of a number of porphyries still quarried in the area around Bolzano, and all known as porfido Trentino. |
| References: | Andreolli (2003-4); Price (2007) 204 |
| Further information: |
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| Corsi's classification: | Class 15. Porphyry; Species 1; ii. Italian porphyries |
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| Corsi's text: | 195.2 Porfido delle Alpi |