carbuncle
carbuncle, in mineralogy, a deep red, cabochon-cut almandine, which is an iron aluminum garnet. See almandine.
This article was most recently revised and updated by John P. Rafferty.
Citation Information
Article Title:
carbuncle
Website Name:
Encyclopaedia Britannica
Publisher:
Encyclopaedia Britannica, Inc.
Date Published:
08 December 2006
Access Date:
November 13, 2026