Corsi Collection of Decorative Stones

view of stone 845

Corsi 845, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 845  
Name and quarry location: Granito nero, from between Aswan and Shellal District, Nile Valley, Egypt  
Geological description: Biotite-bearing granodiorite with a few aligned feldspar megacrysts.  
Comments: This stone is Harrell's variety 'b' of the Aswan granites and granodiorites described on his website. It is also known as diorite Egiziano and is found in a number of localities between Aswan and the Shellal district.  
References: Borghini (1997) 224; Corsi (1845) 210-211, 215-216; Harrell (2010a); Lazzarini (2002c) 229; Mielsch (1985) 67; Price (2007) 234  
Further information:

Corsi's classification: Class 16. Granites; i. Antique granite  
Corsi's text: 208.33 Granito antico. Marmor Syenite. Marmo Sienite... [trovata] presso la città di Siene sul confine fra Egitto, e l'Etiopia... Pyrrhopoecilon... Psaronion...Aethiopicum perchè... era Siene sul confine dell' Etiopia.  

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