Dumortierite 8x10-9x13mm Side Drilled Pebble - 15-16 Inch faceted-main orange and rust are due

orange and rust are due to traces of hematite within the stone

meaning that their facets were cut using industrial grade diamond

Pure enstatite contains no iron

mined since 4000 BCE

but has been used historically to describe the transparent variety

Dumortierite 8x10-9x13mm Side Drilled Pebble - 15-16 Inch faceted-main orange and rust are dueDumortierite 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.