So it is impossible to mine now?
Firstly, it's not something I go looking for, as it's essentially useless at the moment - it's only purpose is to refine with fruits to make nutrio bars, and until/unless taming returns, those have no purpose.
It's for people deposit large amounts to hoard the stuff in the hope that taming returns and they can make a huge profit.
Only to have their hopes dashed when MA change it and it's not used.