Aragonite is a type of calcium carbonate, and its crystal structure is distinctive.

This beautiful garnet is part of my mineral collection.

This rock contains cassiterite.

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

Nepheline is a very important mineral in mineralogy.

This computer is using the latest technology.

Computational linguistics is the study of analyzing human language with computers.

He is an expert in computer science.

Computational geometry is an important field of computer science.

He is studying late into the night to learn a new computer language.