appear to be
ACM can only be determined under a microscope.
I don’t carry mine with me 
Infers that the siding **contains **asbestos.
Deal Killers.
That siding is called Insulbrick (or Insul-shake). Some insurance companies won’t insure a structure with it because of its "vapor barrier’ effects and the resulting water damage/wood rot behind it.
Google “Insulbrick”