Bluestone
Bluestone
is a metamorphic sandstone that comes in various colors, i.e.
blue, blue/gray, brown, lilac, and green. Products include flagstone
(pattern), irregular (standup), tumble, colonial (riftraft),
wallstone, landscapers, steppers, mill cut treads and risers,
natural treads and risers, and guillotine materials such as
veneer.
