pyrope

pyropePyrope aggregate, Barton Mines, Warren County, New York

pyrope, magnesium aluminum garnet (Mg3Al2), the transparent form of which is used as a gemstone. Its colour varies from brownish red to purplish red. A beautiful, deep-red pyrope is often called ruby, in combination with the locality of occurrence, as Cape ruby from South Africa. It is also used in jewelry as the Bohemian garnet.

This article was most recently revised and updated by Amy Tikkanen.