Zakaah on Quicksilver

What is Quicksilver? The metal mercury resembles silver in color. Unlike silver and most other metals though, mercury is liquid at ordinary temperatures, For that reason it is able to flow and to move almost as if it were alive. The old English word for mercury was cwicseolfor, a combination of cwic, meaning ‘alive’ or ‘moving,’ and seolfor, meaning ‘silver.’ The modern English quicksilver comes from the Old English cwicseolfor. Mercury is a naturally-occurring chemical element found in rock in the earth’s crust, including in deposits of coal. In conclusion, mercury is known as quicksilver because of its fast molecular motion and mobility.

If this is the ‘Quicksilver’ that you are referring to, then there is no Zakaat on it, as it is not silver metal which is Zakaatable. Zakaat is payable on gold and silver metal when equivalent to Nisaab or more.