There is a small way to identify.
Pick the last one and scrape it on the surface with a blade.
Really: there is powder. Wipe it off and it will be smooth, and the scratches will not be visible.
False: peeling
Besides, don't listen to some people say burn, don't! )
Jade is pure, and a gentleman is beautiful.
2, Jinyutang jewelry, with your happiness and well-being.
3. Jinyutang-the paradise you believe in.