Quickrete sand purchased in Smiths Falls at a local TSC store.
It has been rinsed, put into a jar and covered in water by a few inches and jiggled a bit to let the sand settle out a bit to sort of simulate an aquarium look. It is much darker over all and has a smaller average grain size than my current tank sand. Although it seems to have some larger gains. I expect over time that the larger grains would be more apparent as the finer grains settle into the bottom.
Hmmm... I will do a dry closeup later to see what the composition is. I already know there is a fair amount of limestone in there and it looks less "quartzy" than the other.