macle

(redirected from macles)
Also found in: Dictionary.

macle

[′mak·əl]
(crystallography)
A twinned crystal.
(lapidary)
A twin structure in a diamond.
(mineralogy)
A dark or discolored spot in a mineral specimen.
Mentioned in ?
References in periodicals archive ?
The Black Lick sample contained diamonds which are white or brown octahedra, or macles and fragments of octahedra which do not show extensive resorption.
All of the diamonds are white or brown octahedra or macles and fragments of octahedra which do not show extensive resorption.