Antieke juwelen glossarium
(verklarende woordenlijst)

A - B - C - D - E - F - G - H - I - J - K - L - M - O - P - Q - R - S - T - U - V - W - X - Y - Z         (alles)

Parting

The quality of some gemstones (e.g. corundum) that makes it possible for them to split only along certain definite planes (e.g. some twinning planes) of the crystal, contrary to cleavage which leads to splitting anywhere parallel to the cleavage plane.

From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson