Mineral Stone is Resynths ore block. By default, it
only spawns between levels 3-5 and in rare amounts.
However, this can be changed in the mods config settings.
When broken, Mineral Stone will usually drop 1 to 2 Mineral
Rocks which are needed throughout the mod to get started
and progress. A fortune pickaxe can increase the the
amount of Mineral Rocks dropped. Occasionally, the
Mineral Stone block will drop Mineral Seeds instead of
Mineral Rocks. These seeds can then be used to grow
Mineral Rocks instead of mining it.
In 1.13.2, Mineral Stone world generation changed
slightly. Mineral Stone now spawns higher up and
in larger amounts.