It is called "Advanced Xray". Most people see it as bad to have Xray but because my mod has so many ores it's often hard to find all the ores that I want because there's so many. This mod would be a great help.
The mod link is here (https://www.curseforge.com/minecraft/mc-mods/advanced-xray)
If it is possible please email me if it is added.
