Amethyst 6mm Star Cut Coin A Grade - 15-16 Inch Orange Garnet It is the green form

It is the green form of Beryl

orthorhombic crystals or in massive form

Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives

Ethiopian Opal typically occurs in brown

Agate is one of many varieties of banded Chalcedony

Amethyst 6mm Star Cut Coin A Grade - 15-16 Inch Orange Garnet It is the green formAmethyst 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