Opalite is man made, lab created, synthetic opalized glass. For the most part, it is represented as exactly what it is. There is always someone however, that tries to pass it off as “the real deal (Opal)” or a type of rainbow Moonstone, be it through ignorance or incorrect information passed on.
It is not in any way, shape or form a type of Opal (or Moonstone) no matter what fancy story someone attaches to it.
So, while it is not a true Fake or Forgery, it was included for educational purposes.