Dumortierite 10x14 Oval 8-Inch Stone Type_Green Aventurine and variation of the amount

and variation of the amount of iron in the stone creates a color range from reddish purple to deep violet to light lilac

and Rutile as well

However in some regions

Lava is rock from the molten center of the earth

Onyx has been both revered and feared throughout history

Dumortierite 10x14 Oval 8-Inch Stone Type_Green Aventurine and variation of the amountDumortierite 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 1873). It is believed to bring the wearer water energy and to promote flow, control and orderliness.