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 Proof That You Have Absolutely No Concept Of Time The Future Of Warfare: Laser Cannons & Drone Armies The Surprising Places We Waste Energy Animation Makes Stephen Hawking’s Ideas Easy to Understand How Would a Black Hole Kill You? How healthy are your ears?