Abd al-Malik ibn Marwan
Through the end of the 7th century, Arabian copies of solidi – dinars minted by the caliph Abd al-Malik ibn Marwan, who had access to supplies of gold from the upper Nile – began to circulate in areas outside the Byzantine Empire. These corresponded in weight to only , but matched the weight of the lightweight (20 "siliquae") solidi that were circulating in those areas. The two coins circulated together in these areas for a time.