Is there any way to detect mineral-chunks via triggers? Not those which are placeable as powerups, I mean the one the probes/drones/scv's holds in their hands (or whatever) when they are cargoing back.

Nope, those are images, not actual units.

AFAIK: no. You can't center location on them, and neither Bring or Command detects them.

I'm pretty sure of this. Almost totally.

Alright, thanks, but is there a way to detect if the probe/drone/scv is cargoing or mining? or even better: detectable if the scv is in a reffenry?
If no at all: Nuderaider shall lock this topic as soon as possible >.<