Mystical Spirit Powder- do what with it?

As the title states. It says to process by grinding but that option is not available from either storage processing or by standard "L" processing. Anyone know whats up with it?

 

https://bddatabase.net/us/theme/6557/
You need this knowledge to unlock grinding, I believe.

oh and I forgot to add, this is the quest to gain the knowledge
hope this helps https://bddatabase.net/us/quest/2100/29/

 

Dang.....Master processor and I forgot to I had to do those quest for some things like this. Oh well...I'll get a few sharps & hards out of it at least. Thanks

Update 7/4/2018: After completing the above recommended quest line, I still do not have access to grinding mystical spirit powder. Upon further discovery, it looks like I will have to complete the knowledge (ecology) for grinding, more specifically cooking ingredients. If you look closely, you can see the words "Mystical Spirit Powder" behind the "Cooking Ingredients" completion circle. If that doesn't complete the requirement, I assume I will have to also complete the precious metals & silk culture etc. knowledge (ecology). I'll update this thread so anyone else that has the same question wont have to guess.