Dumortierite 8x10-9x13mm Side Drilled Pebble - 15-16 Inch may31 The image shown has multiple

The image shown has multiple cabochons to give you an idea of the range possibilites of the colors

It has a hardness of 8 on the Mohs hardness scale

among other numerous names

Shears leave a clean

its brilliant color comes from the presence of very small inclusions of Nickel compounds

Dumortierite 8x10-9x13mm Side Drilled Pebble - 15-16 Inch may31 The image shown has multipleDumortierite 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.