Question

the most common mineral group in the earths crust is

Answer 1

Feldspar and Quartz

Answer 2

http://geology.about.com/od/minerals/f/mostcommonmin.htm check this out for more information

Answer 3

I'd say sillicates

Answer 4

fledspar and quartz are specific minerals, the mineral group is sillicates :)

Answer 5

thanks so much you guys!