Why is talc a slippery mineral whereas quartz is a hard mineral?

a. Quartz is composed of sheet structures, whereas talc is composed of single chain structures.

b. Quartz has sheet structures that are held together very strongly by magnesium ions, whereas talc lacks such strong bonds between its sheet structures.

c. Quartz only has silicon-oxygen bonds, which are equally strong in all directions, whereas talc is made of sheet structures.

d. Quartz is composed of single chain structures, whereas talc is composed of sheet structures.

e. Talc only has silicon-oxygen bonds, which are equally strong in all directions, whereas quartz is made of sheet structures.


c. Quartz only has silicon-oxygen bonds, which are equally strong in all directions, whereas talc is made of sheet structures.

Environmental & Atmospheric Sciences

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