Nepheline is a very important mineral in mineralogy.

This rock is made of alunite.

From a crystallography perspective, this peridot has very interesting characteristics.

Her ring was adorned with beautiful turquoise.

This rock contains cassiterite.

There are a lot of pebbles at the bottom of this river.

Vermiculite, in mineralogy, is a type of mineral and is used for various purposes due to its characteristics.

Harry was searching for the Philosopher's Stone.

Sudoite is a green mineral that is mainly found in Japan.

This rock contains chlorite.