Many limestones are rich in aragonite, but this in course of time tends to recrystallize as calcite.
In some cases it was necessary to dissolve in hot HCl again and to recrystallize.
They are dissolved by strong hydrochloric acid, and recrystallize as octahedra upon addition of ammonia.
I never had any recrystallize after once having been treated to the water bath; and the flavor of the honey was in no way injured.
In the latter case anamorphism is necessary to recrystallize the carbon into the form of graphite.