the softest rock is talc and the hardest is a diamond
diamond is the hardest and graphite is the softest
The softest mineral is talc, and the hardest is diamond. You can check this on the Mohs hardness scale.
The hardest mineral is diamond, and the softest mineral is talc.
i think sulfur is the softest and crystal is hardest
The softest known mineral is 'TALC'. The hardest known mineral is 'DIAMOND' (according to Friedrich Mohs scale)
talc is the softest rock in the world while diamond is the hardest rock
The hardest mineral is diamond, and the softest mineral is talc.
diamond is the hardest and graphite is the softest
The softest mineral is talc, and the hardest is diamond. You can check this on the Mohs hardness scale.
The hardest mineral is diamond, and the softest mineral is talc.
i think sulfur is the softest and crystal is hardest
The softest known mineral is 'TALC'. The hardest known mineral is 'DIAMOND' (according to Friedrich Mohs scale)
A diamond and talc
number 10 is diamonds and the softest (number 1)is talc
There are about 20 grades of pencils from 9H the hardest, to F being the softest
A diamond and talc
Caesium (or cesium) is the softest metal.