The irreversible transition from a metastable polymorphic form to the stable polymorph. Example: The transition of metastableCaCO3
(aragonite-type) to the stableCaCO3
For liquid crystals the term refers to a @LT06856@ to @L03579@ that occurs below the @M03821@ point and is revealed by supercooling of the crystal.
PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 586 (https://doi.org/10.1351/pac199466030577)