Amethyst 6mm Star Cut Coin A Grade - 15-16 Inch super-gemmy Tanzanite is both extremely rare

Tanzanite is both extremely rare and extremely attractive

These cabochons are all unique and vary in colors and patterns

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

have been used for yellowish gemstones for at least two thousand years

Sodalite is named for its sodium content and may be classified as a feldspathoid

Amethyst 6mm Star Cut Coin A Grade - 15-16 Inch super-gemmy Tanzanite is both extremely rareAmethyst 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