Light Amethyst 9x11-13x18mm Free Form Faceted Oval A Grade - 15-16 Inch hps_01022026 and it has been used

and it has been used throughout history for various purposes

Obsidian ranges in color from opaque black

a hydrous copper silicate

Silver Crazy Lace Agate is a naturally occurring form of Crazy Lace Agate

Light Amethyst 9x11-13x18mm Free Form Faceted Oval A Grade - 15-16 Inch hps_01022026 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 to 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