Following are a number of back-translations as well as a sample translation for translators of Job 28:3:

• Kupsabiny: “Those stones are searched up to where darkness has closed in.
  One goes into the deep of the earth
  and one digs from that place.” (Source: Kupsabiny Back Translation)
• Newari: “People banish [lit.: cause not to exist] the deep darkness.
  They search for ore in the dark places of the depths of the earth.” (Source: Newari Back Translation)
• Hiligaynon: “People used lamp so-that (it is) not dark when they dig into the very deep of the ground. They dig-up stones in the deepest.” (Source: Hiligaynon Back Translation)
• English: “Men use lamps while they work far down under the ground
  to search for the ore inside the mines
  where it is very dark.” (Source: Translation for Translators)