Surface treatments, usually in the following categories:

• smooth - machine finished by saw, grinder or planer
• honed - dull sheen, without reflections
• polished - mirror gloss with sharp reflections
• machine tooled - 4-cut, 6-cut, chiseled, axed, pointed, etc.
• chat sawn - irregular and uneven markings
• splitfFace - concave-convex
• rock face - convex
• thermal - plane surface with flame finish applied by mechanically controlled means to create surface coarseness