An Osmium Horned Unicorn Named Osm

An Osmium Horned Unicorn Named Osm. Learn About The Amazing Element Osmium. Article By Sybrina Durant. In the periodic table book, Magical Elements of the Periodic Table Presented Alphabetically By The Metal Horn Unicorns, you'll learn that osmium is the densest natural substance on Earth as well as one of the rarest. You'd need to mine 10,000 tons of platinum ore to get a cube of sugar's worth of osmium! This exclusion is due to its scarcity – it's the least abundant stable element in our planet's crust. Unfortunately, osmium doesn't have many practical uses in everyday life, which results in its low monetary value. Read more.