It's definitely a motor brush.
I've never seen a piezoelectric igniter that looks anything like what OP posted. Just to be clear, you're talking about these that are in most lighters, right?
Image of piezoelectric igniter
It's definitely a motor brush.
I've never seen a piezoelectric igniter that looks anything like what OP posted. Just to be clear, you're talking about these that are in most lighters, right?
Image of piezoelectric igniter