Post from r/whatsthisrock identified this as early stages of boudinage
This post identified this specimen as an example of early stage boudinage caused by compressive forces perpendicular to the veining.
https://www.reddit.com/r/whatsthisrock/comments/1tcbmgv/interesting_rock_pattern/
I'm no structural geologist, but to me it looks more like the early stages of en eschelon veining caused by shearing parallel to to veining. If you zoom in, you can see the characteristic S shape to the fractures.
I would have commented to the post directly, but it's locked. If it is actually boudinage and not en eschelon, I would appreciate if someone could explain to me how they can tell.
Not trying to argue with anyone, just improve my skills, as my first impression was en eschelon but boudinage seems to be the general consensus.
Thanks