What is the role of minerals in the formation of rocks?

Minerals are usually defined as an inorganic solid substances that are comprised of a specific chemical composition as well as well oriented and preferred internal structure of atoms. Some of the examples of minerals are calcite, quartz, olivine, pyroxene, gold, silver and many more.

There are numerous minerals present in earth, and they combine with one another and give rise to the formation of rocks. These minerals are present randomly in terms of oxides, sulfides, native elements.

Thus, rocks are considered to be the aggregate of minerals which are formed under different condition such as temperature, pressure, rate of cooling, sedimentation and compaction.

answer is  

loa ≅ lma

to prove that the triangles are congruent using the aas congruence

a characteristic is a deep cut in the earth or left over rock aka till.