تحفة النظار في غرايب الامصار وعجايب الاسفار 10.15.2

10.15.2

One of their learned men told me that it is called haft jūsh (with a after the h, no vowel on the f, then t, j with u, and ending in sh), meaning "seven metals", and that it is composed of them. A portion of this pillar the length of a forefinger has been polished, and the polished part has a great lustre. Iron makes no mark on it. Its height is thirty cubits. We wound a turban around it, and the part of it that encircled its circumference was eight cubits.