Did you know that precious metals are not limited to gold/ silver/ platinum. Here is a list of 8 precious metals:
You can find Rhodium on Market Spot Price, along with Gold, Silver, Platinum, and Palladium.
Ruthenium and Iridium are less known metals yet are considered to be among 5 most valuable ones, along with gold, platinum and rhodium, superseding more common palladium and silver.