RubyBlock

The RubyBlocks mod adds (or.. should add) a new minable mineral: the Ruby!

For now, you can only mine, smelt and blast the ore to create the gem, craft the block with the gems and vice versa, and build a new magical weapon: the Fire Staff (i know it doesn't make sense at all, I'm just messing around to learn how to mod).

In addition, there are two unique advancements who require possessing a Ruby and consuming a Fire Staff to be completed.

I'd really like some experienced modders to try this mod and tell me a few tips to improve it (for example: how am I sure the ore block is naturally spawnable? or: how can I change the Fire Staff attack speed and flight trajectory?)

Thanks in advance!