General Information

Describe the bug:
Eximite ore is impossible to find and way too rare compared to Meutoite.

To Reproduce:

1. Try to mind Adamantine or higher
   => Eximite is required
2. Go to the End
   => find lots of Meutoite, but no Eximite in sight

Expected behavior:
From a quick code review, Eximite only spawn if

There's 2 issues here:
1- negative X or Z are ignored
=> consider adding a Math.abs() in there
2- 5k is way too high for public servers where disk space usage is forcing us to have world border before 10k size (5k radius).
=> consider adding a configuration for this constrains

Also, since Meutoite is pretty useless without Eximite, I suggest it to be of the same rarity, if not lower than Eximite.

Environment Versions

Versions:

• Metallurgy: 1.0.2
• Conflicting mod (if regarding mod integration): none
• Other mods you think could cause issues: none
• Forge: 14.23.5.2854
• Minecraft: 1.12.2
• Modpack (if available): https://www.curseforge.com/minecraft/modpacks/fsg-arcania-craft/files/3025855

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Logging Information

Crash Report (if available):
n/a

Latest Log (if necessary):
n/a

Additional Information

Screenshots (if available):
n/a

Additional context (optional):
n/a