Minecraft wiki entry for Amethyst_Cluster, associated text: 1 Obtaining
1.1 Breaking
1.2 Natural generation
1.3 Budding amethyst
2 Usage
2.1 Growing into amethyst clusters
2.2 Decoration
2.3 Light
2.4 Sound
3 Sounds
3.1 Generic
3.2 Unique
4 Data values
4.1 ID
4.2 Block states
5 History
6 Issues
7 Gallery
8 References