Silver
'Silver' signifies spiritual good or truth from a celestial origin. It also represents the truth of faith, or the truth acquired from self-hood, or proprium. 'Silver' means scientific truth. In Genesis 20:16, it signifies rational truth. 'A piece of silver' signifies a truth, or a knowledge of truth. In the internal sense of the Word, it signifies truth, but also falsity.
(Notae: Arcana Coelestia 1551; Exodus 16, 20; Psalms 6, 12, 12:6)
Jeremiah 10:8-9
8
But they are together brutish and foolish: the instruction of idols! it is but a stock.
9
There is silver beaten into plates, which is brought from Tarshish, and gold from Uphaz, the work of the artificer and of the hands of the goldsmith; blue and purple for their clothing; they are all the work of skillful men.
