Recently, I've been studying the subject of polymorphism and met two important concepts, the monotropic and enantiotropic polymorphic transition types. However, I can't really seem to grasp the difference between them practically.
What I do understand is that enantiotropic polymorphism is reversible, but what does "reversible" mean practically?
Also, the definition for monotropic polymorphism says that it is irreversible due to metastability. But what exactly is metastability, what does it mean practically? Also, what does "irreversible" mean? Because, surely, I can transform diamond into graphite and graphite into diamond despite it being a monotropic polymorphism.
Thanks in advance for any insight given!