Alkalis and acids (including hydrofluoric acid) on amber almost do not work. Even sulfuric acid concentrated acts on amber, only eroding the surface. Amber is very poorly soluble, that’s why it is used as a material for making chemically resistant dishes (glasses, cups, etc.), resistant to the action of hydrofluoric acid and alkalis.
http://w.sharethis.com/widget/?wp=4.6.6
In what liquid can amber be dissolved? was originally published on Инструменты, станки и оборудование для ювелиров
Amber 