| OUMNH Number: |
847
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| Name and quarry location: |
Marmor Claudianum, granito del Foro, from Mons Claudianus, Eastern Desert, Egypt
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| Geological description: |
It is a weakly metamorphosed granodiorite showing some foliation, and composed mainly of plagioclase feldspar, hornblende, biotite, and lesser amounts of quartz, with traces of epidote.
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| Comments: |
This the granito del foro, so-called because it was used for the columns of Trajans Forum in Rome. The quarry has been discovered between Wadi Abu Marakhat and Wadi Diqal near Wadi Fatiri el Bayda. Harrell describes this stone as a tonalite gneiss, and in the literature it has been variously described as granodiorite, quartz diorite and tonalite suggesting it shows some compositional variation.
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| References: |
Borghini (1997) 222-223; Corsi (1845) 210-211, 213-214; Harrell (2010a); Lazzarini (2002c) 235-236; Mielsch (1985) 69, taf.23; Peacock (1994); Price (2007) 228
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| Further information: |
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