Is it possible to locate the position of a specific block in Minecraft Java
I am building a datapack and I want to replace how diamonds and emeralds function by modifying their generation behavior. But I don't know if this is A : possible and B : worth my time looking in to. I did some research but could not find anything that was up-to-date with or answered when 1.18.x was around. I was told here in the comments that there was a command called /locateblock but I couldn't find anything on the wiki about the command or anything like it. So I am lead to believe that the command doesn't exist. If this is possible via Spigot or Fabric/Forge (As long as it is server-side) I would be willing to use a plugin/mod but I would like to avoid doing so.
If anyone is interested in or needs to know why I want to do this, I am extending on my question here to get closer to adding custom ores and gemstones without (hopefully) mods/external APIs.
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Can you locate a specific block in Minecraft?
The blank is for the particular block you are looking for. Let's say you're lost in the Nether and need to find your Nether Portal, you could type : /locateblock obsidian, and get the coordinates for the nearest obsidian, most likely being your, said, Portal.Detect A Player's Location With Blocks In Minecraft Java Edition | 1.18+
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