Amethyst 12mm Round 15-16 Inch Stone Type_Sodalite and it has been used

and it has been used throughout history for various purposes

and because its hardness has made the stone perfect for beads and cabochons

periwinkle

Opals are hydrated amorphous forms of silica

non-crystalline mineraloid consisting of a high percentage of carbon

Amethyst 12mm Round 15-16 Inch Stone Type_Sodalite and it has been usedAmethyst 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