Corsi Collection of Decorative Stones

| return to catalogue
view of stone 983

Corsi 983, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 983  
Name and quarry location: Porfido delle Alpi, from the Alps  
Geological description: Quartz porphyry. Pale reddish brown rock. Subhedral phenocrysts of glassy quartz up to 3mm and pale brown alkali feldspar set in very fine-grained pale brown groundmass with occasional ferromagnesian silicate mineral and black oxide.  
Comments: This locality has not been confirmed.  
References:  
Further information:
 


Corsi's classification: Class 15. Porphyry; Species 1.; ii. Italian porphyries  
Corsi's text: 196.9/ S26.1 Porfido delle Alpi  

Full entry in English

| return to catalogue
Enter some search terms
Show results as:

search tips

Searches the database for all stone records containing the words you enter. To search for a text string, put it between quotation marks. To search for stone records that don't contain a word, put a minus sign in front of it.

For example, entering: granite "coarse-grained" -Egypt will find all the coarse-grained granites that do not come from Egypt.

Terms of three characters or less have not been indexed.

Funded by Esmée Fairbairn Foundation Oxford University Museum of Natural History University of Oxford