al-Moyassar (till c. 1995 al-Maysar) (22°47'N; 58°07'E, 545 m altitude) is an archaeological zone in the Sharqiyah province, Oman where the remains of all pre-Islamic periods came to light.
The geographic definition has changed in recent years for this irregular area which measures some 2 x 5 km.
[1] In 1976 the British D. B. Doe & B. de Cardi conducted more extensive surveyed and returned to the area.
Beginning in 1977 to 1981 Gerd Weisgerber of the German Mining Museum in Bochum undertook extensive survey and excavation in al-Maysar and Samad in search of the copper producing land of Magan/Makkan (respectively Sumerian and Akkadian).
[8] Around 1995, by royal decree the town name was changed from al-Maysar to al-Moyassar, owing to a resemblance to the maysir game, which the Prophet disapproved of.