Corsi Collection of Decorative Stones

view of stone 772

Corsi 772, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 772  
Name and quarry location: Sicilian jasper, diaspro di San Stefano di Quisquina, from Santo Stefano Quiquina, Bivona, Agrigento, Sicily, Italy  
Geological description: Silicified limestone breccia with agate/crystalline quartz matrix and filling of fractures. Darker brown areas are filler.  
Comments: This may be from Santo Stefano Quisquina, near Bivona. Jervis (1881; 226) describes milky white agate from this locality although that probably refers to translucent chalcedony rather than a silicified limestone breccia like this. Tata includes a dirty white jasper speckled with black, with dark patches, again probably not this stone.  
References: Jervis (1881) 226; Jervis (1889) 449-482; Montana & Briuccia (1998); Price (2007) 246-247; Schmidt (2002); Tata (1772) 19-20  
Further information:

Corsi's classification: Class 14. Quartz and its varieties; Species 6. Jasper; ii. Italian jaspers  
Corsi's text: 189.25 Diaspro di S.Stefano... di Sicilia  

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