Definition of crystal form in US English:

crystal form


  • A set of crystal faces defined according to their relationship to the crystal axes.

    • ‘The spangolite, as found in these slags, is unique and interesting for its crystal form.’
    • ‘These crystals are similar to the antlerite crystals, which are a brighter transparent green and have a different crystal form.’
    • ‘In both cases, the crystal form of the original mineral is retained.’
    • ‘Rarely, analcime crystals with distorted crystal form have been found.’
    • ‘The external crystal form is controlled by the internal structure.’