A block of Coffee Wood Marble from the Guizhou quarry, marked CX-1845 by the yard, with the straight lines of the bed running down the sawn face and iron staining carried down it by rainwater.
The specifications of the stone itself, the thicknesses it is cut to and the way a block is sawn are on the raw block page.
Quarried in Guizhou, China. How it is worked.