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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