Zircon (noun)

A mineral that is a silicate of zirconium, occurring typically in yellow, brown, or green and used as a gemstone and in atomic reactor shielding and in ceramics.

Origin:

From arabic zargun, from persian zargun "gold-colored".

Examples:

1. The ring was set with a beautiful zircon.
2. The zircon is used as a substitute for diamond.
3. He found a large zircon in the mine.
4. Zircon is a common mineral found in many types of rocks.
5. Zircon is used in many industrial applications, including ceramics and nuclear reactors.