In both common and rare minerals, size usually does matter. Given all other factors equal, bigger is more expensive. However, with a truly rare mineral which has never been reported as anything but microscopic crystals, then size of individual crystals is not really so important. Externally flawless specimens from Arkansas are relatively scarce, due to both reasons mentioned above. Anytime you see quartz piled up on a table, it will be difficult to find an undamaged specimen.
Natural breakage is due to movements of the earth along fractures and faults.
Many of the early-formed quartz veins were in fractures, which because they were in a weak spot in the ground, were reopened by later earth movement. Then more quartz formed. Regrowth on a natural fracture near the termination of a large quartz crystal. Ron Coleman mine, near Jessieville, Garland County, AR Unusual forms and highly distorted forms often come from pockets formed by multiple fracture episodes. Rarely, faulted crystals are recovered, sometimes healed back together, but with an offset of the two pieces.