Definition of cairngorm in English:

cairngorm

noun

  • another term for smoky quartz
    • ‘Quartz is colourless when pure but minute amounts of impurities or lattice imperfections give rise to varieties such as amethyst, cairngorm, rose quartz, and smoky quartz.’
    • ‘They dated back to the days of Shay Leri and her king Alorath, he remembered vaguely; the old amber velvet that covered the seat and footstool and the great cairngorm set into the back were some of the prizes they had gathered on their travels.’

Origin

Late 18th century: named after the Cairngorm Mountains.

Pronunciation

cairngorm

/ˈkɛːnɡɔːm/