Silicates, which are the most common minerals in the earth's crust, typically have specific gravities of 2.5 - 3.0.
(Silicates; are; the most common minerals in the earth's crust) (Silicates, which are the most common minerals in the earth's crust; typically have; specific gravities of 2.5 - 3.0)
Silicates Silicates, which are the most common minerals in the earth's crust
are typically have
the most common minerals in the earth's crust
specific gravities of 2.5 - 3.0