The only metallic element that is liquid at room temperature and where an anvil can float in it. Quite toxic though.
-- Abundance --
The number of copies for this collection is defined by the rarity or abundance of an element in the solar system and on earth. This element is unique.
A representation of all the elements of the universe. Rarity of the elements is based of the abundance in the universe, on earth and in the human body. 118 Elements to come. Most of the elements are unique but the most common ones will be available with copies (to match the abundance repartition in real life).