Corsi Collection of Decorative Stones

view of stone 757

Corsi 757, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 757  
Name and quarry location: Diaspro di Barga, from Barga, Lucca, Tuscany, Italy  
Geological description: A breccia of brown jaspery fragments in colourless crystalline quartz, in turn surrounded by white chalcedony, voids are filled with yellowish crystalline quartz.  
Comments: From Barga, Tuscany, Italy. Jervis (1881) describes the precise locality, geological context, and the famous use of the Barga jasper in the chapel of the Princes in the Church of San Lorenzo in Florence.  
References: Corsi (1825) 187-188; Giusti (1992) 269; Price (2007) 247  
Further information:

Corsi's classification: Class 14. Quartz and its varieties; Species 6. Jasper; ii. Italian jaspers  
Corsi's text: 188.10 Diaspro di Barga in Toscana  

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