Dog Teeth Amethyst 8x11mm Faceted Nugget - 15-16 Inch Gem Master & Sons This stone is relatively soft

This stone is relatively soft

Diamonds actually form at high temperatures and pressures that occur in Earth's mantle about 100 miles below Earth's surface

They are all silicate minerals

Most topaz grows as crystals within the veins and voids of igneous rocks

black and red

Dog Teeth Amethyst 8x11mm Faceted Nugget - 15-16 Inch Gem Master & Sons This stone is relatively softDog Teeth Amethyst has a purple and white striped appearance due to its combination of Amethyst and White Quartz. The name derives from the recurring chevron or dog teeth pattern of the stripes. Dog Teeth Amethyst is believed to help soften resistance to change and dispel negativity.