Leaning towards Chinese because of color.
Seems to be a limestone which would qualify it in China, but the best there are from three different areas and named so.
It does have awkward and overhanging asymmetry which is very good.
Does it ring a bit when struck? If so it is also a desired quality.
When representative of any object or landscape is also desired.
A glossy surface is also desired but could be corrected.
So it appears to have the
aesthetics of a Scholar's Rock. Treat it as such, clean it, gloss it, put it on a Rosewood stand and enjoy
Grimmy