Corsi Collection of Decorative Stones

view of stone 844

Corsi 844, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 844  
Name and quarry location: Granito bianco e nero, from Wadi Barud, near Mons Claudianus, Eastern Desert, Egypt  
Geological description: Quartz diorite with megacrysts of hornblende, white plagioclase feldspar and minor quartz.  
Comments: This is a typical example of granito bianco e nero, a stone worked from the first century AD until late in the second century. The quarries were near a fort called Tiberiane, for which reason the stone came to be known as Tiberianum. It is from the Precambrian basement rocks of Wadi Barud.  
References: Borghini (1997) 217; Corsi (1845) 210-211, 217; Harrell (2002b); Harrell (2010a); Lazzarini (2002c); Mielsch (1985) 69, taf.23; Price (2007) 230  
Further information:

Corsi's classification: Class 16. Granites; i. Antique granite  
Corsi's text: 208.32 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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