Fracture

In gemology, a fracture refers to the way a gemstone breaks when it is not along the cleavage planes.

Part of speech: noun
Definition: A fracture in the context of gemstones and jewelry is characterized by the breakage of a gem that occurs in a manner not aligned with its natural cleavage planes. These breaks can vary significantly in appearance, ranging from smooth, curved surfaces akin to conchoidal fractures, to uneven or jagged ones. The presence and nature of fractures within a gemstone can significantly influence its value, durability, and the methods by which it may be cut or set into jewelry. Fractures also offer insights into the gemstone's formation processes and can affect how light interacts with the gem, sometimes creating unique reflective properties or patterns that contribute to the stone's overall aesthetic appeal.