Dumortierite 3x6mm Square Rondelle - 15-16 Inch Origin_Zambia/Congo It is a hard ceramic

It is a hard ceramic in the Beta-Aluminate family

Princess Patricia of Connaught

It was highly prized in ancient cultures and associated with many positive properties

An iron oxide-hydroxide mineral

Specially designed for cutting hard wire

Dumortierite 3x6mm Square Rondelle - 15-16 Inch Origin_Zambia/Congo It is a hard ceramicDumortierite is an aluminum borosilicate mineral that varies in color from blue, green and brown to the more rare violet and pink. First described in 1881, the mineral was named for French paleontologist Eugene Durmortier (1803 to 1873). It is believed to bring the wearer water energy and to promote flow, control and orderliness.