Could it be encased into a finished paperweight? Maybe. You would have to know the linear expansion coefficient of the glass it is made from, then find a source of clear that would match. Before encasement it would have to placed in a kiln and brought up to a working temp. After encasement it would have to go back into the kiln for annealing, a gradual cooling process. Anywhere in this process of heating and cooling it is possible that the glass could crack, it shouldn't, but it could.