Stained Strata

This is a fun rock surface... Not only do you have the lovely flame pattern from iron precipitating through hairline cracks, you have long gouges caused by glaciers scraping stones over the surface from the upper right to the lower left... And these scrapes have two angles as if there were more than one glacial orientation ... That part is interesting because this is the surface of a thick strata of stone diving into the ground, not just some rock that got tumbled about to get a new angle on things.

Rock
Cracks
Glacier
Groove