Tungsten metal is a very hard, brittle, silvery heavy material with a very high melting point. Its most famous application is as filament in light bulbs. More often used than pure tungsten is tungsten carbide, WC, which is a very hard and mechanically enduring ceramic material. This is used for drills, milling machines and even for jewelry. Tungsten carbide is much cheaper than the related carbides of hafnium and tantalum.
Some bacteria use tungsten in enzymes, which makes it the element with the highest number that has a biological role.
Amazing Tungsten metal standard density cube 10x10x10mm, 99.99% pure. The sample weighs 19.25 grams which is the theoretical density of the Tungsten metal element. This cube is amazing for any science classrooms, schools, universities and collectors. Pure Tungsten metal cube for element collection.