Talc (derived from the Arabic: "talk") is a mineral, the standard for hardness grade 1 in the Mohs scale.
(Talc (derived from the Arabic: "talk; is; a mineral, the standard for hardness grade 1 in the Mohs scale)
Talc (derived from the Arabic: "talk
is
a mineral, the standard for hardness grade 1 in the Mohs scale