Definition of macle in English:

macle

Syllabification: ma·cle
Pronunciation: /ˈmakəl
 
/

noun

  • 1A diamond or other crystal that is twinned.
    More example sentences
    • Almost all the creeks that have produced gold crystals have produced triangular spinel-twinned crystals or macles.
    • Flattened contact twins are known in the gem trade as macles.
    • Good brown macle twins up to several carats in weight have been available in recent years from the Udachnaya mine.
  • 2 another term for chiastolite.
    More example sentences
    • The chiastolite, or macle, shows the representation of a cross on its surface, this effect being produced by the regular arrangement of carbonaceous impurities along the axes of the crystal.
    • The variety chiastolite (also called cross-stone, or macle) forms long prisms in a cross section.

Origin

early 19th century: from French, from Anglo-Latin mascula 'mesh'.

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