Orthoclase is a type of mineral, mainly found in granite.

This is a kind of flower.

This mountain is mainly made of granite.

This report includes all the details.

This report covers all the details.

This area is known for producing a variety of minerals.

Feldspar is one of the main minerals that make up the earth's crust.

His answer was confirmed to be correct.

He mainly eats vegetables.

He is the lord of this region.