Gold: Most Valuable when Pure and Fine
Source: TTT
Job 28:19
Topaz from Cush cannot compare to it, nor can it be valued in pure gold.
Psalm 19:10
They are more precious than gold, than much pure gold; they are sweeter than honey, than honey from the comb.
Psalm 21:3
For You welcomed him with rich blessings; You placed on his head a crown of pure gold.
Proverbs 3:14
for she is more profitable than silver, and her gain is better than fine gold.