Minecraft wiki entry for Blocks, associated text: 1 List
1.1 Used block textures
1.1.1 Blocks which use entity rendering
1.2 Texture Update pre-releases
1.3 Joke version exclusive textures
1.4 Textures used for block particles
1.5 Placeholder textures
1.5.1 History
1.5.1.1 Missing textures
1.5.1.2 Block placeholder textures
1.5.1.3 Animation placeholder textures
2 Unused textures