Definition of smoky quartz in English:

smoky quartz

Line breaks: smoky quartz

noun

[mass noun]
  • A semi-precious variety of quartz ranging in colour from light greyish brown to nearly black.
    More example sentences
    • 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 collected several pegmatite pockets in which topaz was associated with both clear and smoky quartz, microcline, albite, muscovite, fluorite, and cassiterite.
    • Blue hexagonal beryl crystals and colorless, pale green, or blue topaz are found in cavities associated with microcline, smoky quartz, tourmaline, and, rarely, fluorite.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody