rowlesmr wrote
It also depends on how it crystallises. Does it slowly coalesce, or do nice fully formed crystalline peaks get bigger?
It's a little hard to define "crystalline" and "amorphous" in the first case.
Matthew
The initial pattern is purely amorphous single phase, as time goes on the crystalline phase slowly grows in i.e. crystalline diffraction on top of the amorphous background. The experiment is still undwerway; however, I expect that the crystalline phase will continue to grow in until roughly all the amorphous phase has crystallized resulting in 100% crystalline phase