'Antimony' in the Bible

Now with all my ability I have provided for the house of my God the gold for the things of gold, and the silver for the things of silver, and the bronze for the things of bronze, the iron for the things of iron, and wood for the things of wood, onyx stones and inlaid stones, stones of antimony and stones of various colors, and all kinds of precious stones and alabaster in abundance.

“O afflicted one, storm-tossed, and not comforted,Behold, I will set your stones in antimony,And your foundations I will lay in sapphires.