Definition of "macle"
noun:
-
A twin crystal.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A crystal having a similar tessellated appearance.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Chiastolite; so called from the tessellated appearance of a cross-section.
from Wiktionary, Creative Commons Attribution/Share-Alike License
-