11/ Platinum
Platinum is a rare and precious metal, most widely used in making jewelry, but also used as a chemical catalyst. It costs 36 euro per gram.
12/ Gold
Gold seems to have lost some of its appeal! Considered a noble metal, the price per gram comes at now “only” 30 euros.
13/ Rhodium
Rhodium is a chemical element with an atomic number of 45. It is a hard and brittle metal that comes in the category of light platinoids. The price per gram is 29 euro.
14/ Palladium
Palladium is one of the platinum group metals. It is sometimes considered a noble metal, and used as a precious metal. It costs around 20 euros per gram.
15/ Wool from bison or oxen
Wool from American bison or from the musk ox is a very precious material, which costs around 63 euros for 50 grams.
