OUMNH Number: | 876 |
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Name and quarry location: | probably granito nero, from between Aswan and Shellal District, Nile Valley, Egypt |
Geological description: | Amphibole-rich granodiorite-tonalite with megacrysts of plagioclase, and accessory titanite. There is some alignment of megacrysts giving faint foliation. |
Comments: | This is probably a Precambrian basement rock from one of the many localities between Aswan and Shellal District, Nile Valley, Egypt. It is most probably a variety of 'granito nero', an ancient granite which found its way among Corsi's 'modern' stones. This stone has also been seen in a private collection of ancient stones. |
References: | Borghini (1997) 224; Corsi (1845) 210-211, 215-216; Harrell (2010a); Lazzarini (2002c) 229; Mielsch (1985) 67; Price (2007) 234 |
Further information: |
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Corsi's classification: | Class 16. Granites; ii. Italian granites |
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Corsi's text: | 214.28 Granito delle Alpi |