gold
Exodus 25:3
And this is the offering which ye shall take of them; gold, and silver, and brass,
Exodus 25:4
And blue, and purple, and scarlet, and fine linen, and goats' hair,
Exodus 39:2
And he made the ephod of gold, blue, and purple, and scarlet, and fine twined linen.
Exodus 39:3
And they did beat the gold into thin plates, and cut it into wires, to work it in the blue, and in the purple, and in the scarlet, and in the fine linen, with cunning work.