'Gold of Ophir' in the Bible

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

And put the precious ore with the dust, and the gold of Ophir among the stones of the torrents,

It is not set in the balance with gold of Ophir, with the precious onyx, and the sapphire.

Kings' daughters are among thine honourable women; upon thy right hand doth stand the queen in gold of Ophir.

I will make a man more precious than fine gold, even man than the gold of Ophir.