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 Discover Saturn's Rings Zombie Cells Are Hiding in Your Body, Could Killing Them Stop Aging? How NASA Reinvented The Wheel – Shape Memory Alloys Your First Look at Jupiter’s Gorgeous North Pole The Future of Weather Warfare Solar-Powered Plane and Contagious Shellfish Cancer