Spall.
• [intr.] (of ore, rock, or stone) break off in fragments: cracks below the surface cause slabs of
material to spall off.
• n. a splinter or chip, esp. of rock.
~Oxford Dictionary~

"Spall are flakes of a material that are broken off a larger solid body and can be produced by a
variety of mechanisms, including as a result of projectile impact".
~Wikipedia~
Check em out

http://www.xfire.com/video/40061d/
http://www.xfire.com/video/4ae959/

" Bring on the Spall Baby"