No mica from void miners

[Opxxy]

I've been running a void miner for at least 2 weeks. I've gotten plenty of ores, but not a single block of Mica.

It is a tier four void miner. If that helps

I've also spotted speed modifiers on others void miners so there is a way to get it I suppose. Either that or they're spawned in.

So how would I manage to get mica?

 

[McDonaldsSalad]

Make sure it is placed in the End dimension