Genuine amber, when rubbed together, emits a very fragrant odour similar to a fresh lemon, and does not abrade the surface.
This is specially the case with Chaffinches and Bramblings: Greenfinches abrade later.
In all cases, however, a hard file will abrade the surface of the false stone.
Wherever they find calcareous strata to abrade, the water is almost milklike in hue for miles around.
abrade a·brade (ə-brād')
v. a·brad·ed, a·brad·ing, a·brades
To wear away by mechanical action.
To scrape away the surface layer from a part.