4. Minerals are the building blocks or rocks.
It’s very useful to human either for necessities or for decorative purposes
since prehistoric times.
Minerals are common and abundant on Earth’s crust are known as rock-
forming minerals.
The term “mineral’ is not unique to geology.
Mineral is naturally occurring, inorganic solid that exhibits a crystalline.
What are rock-forming minerals?
5. Naturally Occurring Inorganic
Solid Crystalline Structure
To determine that
an earth mineral it
should exhibit the
following
characteristics:
Definite Chemical
Composition