Equilibria are defined for specific crystal phases.
The amorphous structure of the material comes from there being no crystal phases within the structure, so there is no long range order.
The final stage is the rearrangement of the crystal phase into the Wurtzite structure.
As an aside, there are some substances that have multiple melting points because the solid can exist in several different crystal phases, phosgene is an example.
Single and twinned crystalline specimens therefore constitute individual crystal phases.
Polycrystalline or crystal powder samples may consist of more than one crystal phase.
Search-match algorithms compare selected test reflections of an unknown crystal phase with entries in the database.
Lattice parameters of unknown crystal phases can be obtained from X-ray, neutron, or electron diffraction data.
Both purely crystalline and plastic crystal phases could be produced, depending on the aspect ratio of the colloidal particle.
The computer says only two of Rand's frequencies can refract through every single crystal phase of olivium.
