Giallo antico (antique yellow) is a precious yellow marble used first by the ancient Africans and later by the Ancient Rome (which they called marmor numidicum (marble of Numidia).Pliny, Natural History, 36, 8 It was one of the marbles most favoured by the Romans because of its beautiful yellow colour.Corsi, Catalogo ragionato d’una collezione di pietre di decorazione (1825) http://www.oum.ox.ac.uk/corsi/stones/view/33
/ref> Varieties with a uniform background were considered more valuable than the brecciated ones, especially the "golden", and the very rare "of a colour similar to the rose"
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It is a crystalline limestone compacted by marked diagenesis.
PlinyPliny, Natural History, 36, 49 attributes its introduction in Rome to Lepidus in 78 BC who used blocks of it for the thresholds of his house. SuetoniusSuetonius, Julii, 85 reports that the people had an honorific column of Numidian marble dedicated to Caesar erected in the Roman Forum. Augustus used the marble for the columns of the peristyle of his house on the Palatine together with portasanta and Pavonazzo marble marble, and he also made extensive use of it in his Forum.Bradley, M. (2006). Colour and marble in early imperial Rome. The Cambridge Classical Journal, 52, 1-22. doi:10.1017/S1750270500000440 It was also used for statues of particularly of barbarians or wild beasts. In the 3rd century the quarries gradually became exhausted and the giallo antico was progressively replaced by yellow breccias of other origins and of lesser value.
It is mentioned in Diocletian's Price Edict at the beginning of the 4th century, where a high price is established.
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