Osmium – The Rarest Naturally Occurring Element Osmium a very beautiful element that is in the Platinum group. It is the rarest naturally occurring element on earth. VSauce – What is the rarest precious metal? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts How do drugs affect the brain? Earth “Ate” Another Planet Early In Its History Explorers Find Metal Orbs Inside Pyramid How to unboil an egg Why Does Everything In The Universe Spin? Animation Makes Stephen Hawking’s Ideas Easy to Understand