In version 1.13.x we decided to go the other way and divided the textures into several parts. In this version, we suggest you install only the files that you need! We reported this earlier.
We have prepared several sets that can be used to play or install in your own texture packs. They contain all types of ore, rail, concrete and several other textures. That will make the world around you a better place.
If you are using legacy client version 1.13.x, then you can use these packages now.
If you are using a fresh client version 1.14 or higher, click on the To Developers item in the site menu and download the necessary textures.