Hello,
I need your help in identifying this stone. A friend told me that most probably it's a Charnley Forest - but I just want to be sure.
It was part of my Grandpa's shaving kit. It was dirty and chipped, probably soaked with old oil. I had to lap the top 1/4" to get a flat surface.



It is a bit greener than it appears in the photos. It has tiny brown/purplish dots, and on the back side, as you can see, a large inclusion of rough, orange material.
It's brittle and easily breaks in thin layers, like a slate.
Lapping was fairly easy, so I would say it's not as hard as a Coticule or Arkansas.