Corsi Collection of Decorative Stones

view of stone 768

Corsi 768, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 768  
Name and quarry location: Sicilian jasper, probably diaspro di Collesano, probably from Collesano, Palermo, Sicily, Italy  
Geological description: Yellow-brown jasper with cavities and fractures infilled with chalcedony which is agate-banded in places, or with colourless crystalline quartz. Some dendrites of manganese/iron oxides are evident.  
Comments: 'Solisano' is almost certainly a mis-spelling of Collesano, a source of jasper and agate according to Montana (1998) who cites Borch's spelling 'Golizano'. Tata (1772) lists jaspers from 'Monte di Golisano'. Jervis (1881, 1889) also describes jaspers and agates from this locality.  
References: Jervis (1881) 205; Jervis (1889) 450-451; Montana & Briuccia (1998), 33, 38; Price (2007) 246-247; Schmidt (2002); Tata (1772) 23  
Further information:

Corsi's classification: Class 14. Quartz and its varieties; Species 6. Jasper; ii. Italian jaspers  
Corsi's text: 189.21 Diaspro di Solisano... di Sicilia  

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