'Gold of Ophir' in the Bible

Even three thousand talents of gold, of the gold of Ophir, and seven thousand talents of refined silver, to overlay the walls of the houses:

Then shalt thou lay up gold as dust, and the gold of Ophir as the stones of the brooks.

It cannot be valued with the gold of Ophir, with the precious onyx, or the sapphire.

Kings daughters were among thy honorable women: upon thy right hand stood the queen in gold of Ophir.