Ruby tools add new tools and armor. They are stronger tools than diamonds. :D 
Here are all the items that this mod contains.
How to create?
We create all items, such as a diamond sword, instead of diamonds we give rubies and go for a ruby sword.
Ruby ore generates from 6 to 14 tiles of 3 or 4 pieces per sector.
Ruby spines are more powerful than diamonds. They deal more damage and are more durable. That is why they are more and more profitable.
The mod is only for version 1.12.2 but is working on newer versions.
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If you want you can download the mod from planetminecraft
https://www.planetminecraft.com/mod/ruby-tools-5162573/
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I wish I had games;)
