Stone Masters has black slate from Brazil. Slate is non-porous, antibacterial, natural, beautiful and durable. slate is very stain resistant.
We have it in both a honed and a natural finish. The honed finish feels smooth to the touch and is black to dark gray in color with a hint of green only visible when wet, aged or oiled. The photos below show it in its natural un-oiled state, except for the last photo which is wet. The natural finish feels like a leathered finish with a bit more texture.
This can be oiled or aged to achieve a darker color which brings out a very light green hue. Slate is hard and has a very low absorption rate. This means the porosity is very low, much lower than granite but not quite as low as soapstone (which is almost, if not completely, zero).