Punon
The name Punon means “precious stone; that beholds”.
Smith's Bible Dictionary 1863
(darkness) one of the halting-places of the Israelite host during the last portion of the wandering. (Numbers 33:42,43) By Eusebius and Jerome, it is identified with Phaeno, which contained the copper-mines so well known at that period, and was situated between Petra and Zoar.
International Standard Bible Encyclopedia 1915
pu'-non (punon): A desert camp of the Israelites, the second after leaving Mt. Hor (Nu 33:42,43). Eusebius (Onom 299 85; 123 9) mentions an Idumean village, North of Petra, in the desert, where convicts were mining copper, called Phinon or Phainon. These are doubtless identical.
See WANDERINGS OF ISRAEL.