There are several bands called Amethyst.

1. A trance / progressive house duo. http://www.discogs.com/artist/Amethyst

2. A Melodic Death / Melodic Black Metal band from the Netherlands.

3. Heavy / Progressive Metal band from Australia.

4. A Thrash Metal band from Italy.

5. A Progressive Metal band from Sweden.

6. A Progressive Metal band from the USA.

7. A Power Metal band from Canada.

8. A Power / Thrash Metal band from the USA.

9. A defunct Pop Rock band from Youngstown, OH, USA. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.