Osmium is one-third as hard as quartz. Tool steels are one-fourth as hard as osmium. Chromium has a oxide layer harder than corundum if dry and sputtered.
sludge hammer
One non-metal that is very hard is diamond. Diamond is made of carbon atoms arranged in a crystal structure, making it the hardest known natural material.
Francium is considered the hardest metal in Group 1 (alkali metals). It is the most reactive alkali metal and is very rare in nature. Due to its high reactivity and radioactive nature, it is challenging to study and handle francium.
Diamond is the hardest of the metals listed, as it ranks the highest on the Mohs scale with a rating of 10. Aluminium, silver, and platinum are not classified as metals on the Mohs scale, and they are not as hard as diamond.
Diamond is the hardest substance in the world, but the second hardest substance is boron nitride. It is often used in high-temperature and high-friction applications due to its exceptional hardness and thermal stability.
Metal is generally considered a hard material, but it is not the hardest material in the world. There are materials like diamond and boron nitride that are much harder than most metals. Hardness is a measure of a material's resistance to scratching or indentation, and different materials have different levels of hardness.
Lutemium
There is no metal by the name 'thompson'.
Diamond is the Hardest in the world. Coming from carbon. Iron, Gold , Aluminium are hard metals
Caesium (or cesium) is the softest metal.
yes it is
titanium
tungsten
Chromium is the hardest metal; the Mohs hardness of osmium is 7 and the Mohs hardness of chromium is 8,5.
diamond
If you mean literally hard, then metal coins (found in many countries) would be the hardest.
Diamond is the hardest substance in the world