On the Mohs scale of mineral hardness, a diamond is at the hardest end of the scale with a value of 10. What substance is the softest with a value of 1?
E553b Talcum Talc powder French chalk ATC code A02AA05 ATCvet code QA02AA05 Talcum powder Magnesium silicate Talc Magnesium Silicate Clinoenstatite Talc (mineral)
talcum french chalk talcum powder magnesium silicate talc mineral talc powder atcvet code qa02aa05 talc clinoenstatite e553b atc code a02aa05
talc
WikipediaEntity
Talc