Amethyst 12mm Round 15-16 Inch 6x8-8x10mm They are all varieties of

They are all varieties of the mineral corundum

occuring 10

and the green color is caused by a reaction in the stone when the chrome is introduced to water

Lapis is a semi to precious stone and one of the most sought after throughout history

Blue apatite is metaphysically considered to be a Stone of Manifestation

Amethyst 12mm Round 15-16 Inch 6x8-8x10mm They are all varieties ofAmethyst is a beautiful purple stone, known as a Gem of Fire by ancient cultures. It has been greatly sought after throughout history and was at times valued as highly as Diamond. Today, this semi precious variety of quartz is found in many locations around the world. The presence of Manganese within the stone produces the purple hue, and variation of the amount of iron in the stone creates a color range from reddish purple to deep violet to light