Corsi Collection of Decorative Stones

view of stone 771

Corsi 771, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 771  
Name and quarry location: Sicilian jasper, diaspro di Giuliana, from Giuliana, Palermo, Sicily, Italy  
Geological description: Brecciated red jasper with heavily-fractured agate matrix. Wider fractures are filled with white fine-grained quartz and yellowish carbonate mineral, the latter also present as colourless-yellow zoned rhombohedral crystals in both jasper and agate matrix. Pinkish-brown areas are filler.  
Comments: From Giuliana, where many varieties of jasper and agate were obtained. See Jervis 1881 and 1889.  
References: Jervis (1881) 225-226; Jervis (1889) 459; Montana & Briuccia (1998) 79; Price (2007) 246-247; Schmidt (2002)  
Further information:

Corsi's classification: Class 14. Quartz and its varieties; Species 6. Jasper; ii. Italian jaspers  
Corsi's text: 189.24 Diaspro di Giuliano... di Sicilia  

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