Corsi Collection of Decorative Stones

view of stone 952

Corsi 952, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 952  
Name and quarry location: Breccia di Siena, from Siena, Tuscany, Italy  
Geological description: Sheared polymict limestone conglomerate. The shearing may have been synsedimentary: Solution seams and stylolites are pervasive. Perhaps a sheared debris flow.  
Comments: This is the brown breccia that used to be obtained from Siena. There is a little yellow in some clasts but not as much as in no.480, another example of this stone.  
References: Price (2007) 92  
Further information:

Corsi's classification: Class 1. Marbles; Section 5. Breccias; i. Antique Breccias  
Corsi's text: 116.43/ S19.10 Breccia lignea  

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