Explain this flaking pattern

[filmiracl]

Can someone explain the flaking pattern of the left piece? The flake on the right is just a flake, with a clear bulb of percussion whereas the piece on the left, is reversed (numerous times.) I assume stuff was intentionally flaked off that piece? For what reason?

 

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[quito]

My best guess is you are seeing where several smaller flakes were detached before the piece you took the picture of came off.

 

[smokeythecat]

It's probably one of those "oh rats, I didn't think it would flake in THAT direction" relics.

 

[filmiracl]

Thanks for your input... so that pattern is something you typically see just on waste flake or did someone flake that off? To me, it looks flaked off intentionally (though I wouldn't know why anyone would work on that piece right there) because that is the "underside" or "inside" of the flake... but maybe that's just the way it broke. I'm a newbie, only doing this for a couple of weeks, so I'm trying to learn what I can.

 

[Jon Stewart]

Not all rock is created equal. I think it just happened. IMHO I know on occasion when I am spalling out a heat treated rock I will get that wavy look on the rock or the debitage. Unintentional for sure.