Item conversion to Materia data

[Reinheart]

After spiritbonding about ~200 pieces of gear, I think it's safe to say that all materia is 100% random.

It really doesn't matter which piece of gear it is or what slot it's in, the chance of obtaining any certain materia is the same for all gear across the board. The only difference is tiers, which seem to be related to the gear level.

Attribute materia is by far the most common, while Healer's Hand is likely the rarest of all (I've never made a single one).

Might not be for everything, I noticed Belts are random but looking at some data (still only few in there) like gatherer or crafters tools seems to be focused on materia that benefits those class. Still too early though