This rock is mainly composed of anorthite.

This rock has existed for millions of years.

Is it possible to change the configuration of this computer?

It took him a year to compose that song.

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

He mainly eats vegetables.

I make soap using lye.

After the fire, the inside of the house was covered in ash.

A gray cat is walking in the garden.

The ash blown out from the volcano covered the town.