Since Talc has a Mohs hardness of 1 and Apatite has a hardness of 4, we can state that a) Apatite is 4 times harder than Talc.
(Talc; has; a Mohs hardness of 1) (Apatite; has; a hardness of 4) (we; can state; that a) Apatite is 4 times harder than Talc) Context(we can state,List([69, 81))):(Apatite; is; 4 times harder than Talc)
we can state,List([69, 81))
Talc Apatite we Apatite
has has can state is
a Mohs hardness of 1
a hardness of 4
that a) Apatite is 4 times harder than Talc
4 times harder than Talc