Corsi Collection of Decorative Stones

view of stone 859

Corsi 859, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

side view of stone 859

side view of stone 859, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 859  
Name and quarry location: Granito di Cumiana, from Cumiana, Turin, Piedmont, Italy  
Geological description: Probably a mylonitised granite. The brown iron-staining is less evident on reverse of specimen.  
Comments: Cumiana is probably correct. Jervis (1889) describes the yellowish white and grey gneiss from this locality, known as pietra di Cumiana which may well be this stone. It was mainly quarried in the 17th and 18th centuries. However, Porter (c.1905) wrote 'Is like no.3i, granite marrone di Corsica' in Corsi's table of modern Italian marbles at the Natural History Museum in London.  
References: Jervis (1889) 58-59; Porter (c.1905) 106; Regione Piemonte website (n.d.).  
Further information:

Corsi's classification: Class 16. Granites; ii. Italian granites  
Corsi's text: 210.11 Granito di Cumiana nel Piemonte  

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