Case's ebony is stable. I use an ebony AK hunter in the kitchen w/o any problem. It gets wet and greasy on a regular basis, wiped off and dries out in my pocket. Only sign of use is some rust freckles on the interior of the backspring. I use Ren wax occionally when I want it to look good. A little 400 or 600 grit sandpaper takes the scratches off the bolsters.