Mohs then categorized the minerals on a scale from 1 to 10, with 10 being the hardest (diamond) and 1 being the softest (talc).
(Mohs; categorized; the minerals; on a scale; T:from 1 to 10; T:then) (10; being; the hardest (diamond) (1; being; the softest)
Mohs 10 1
categorized being being
the minerals on a scale T:from 1 to 10 T:then
the hardest (diamond
the softest