Amethyst 8mm Faceted Puff Square - 15-16 Inch HPS07082022 Hypersthene is often categorized as

Hypersthene is often categorized as enstatite or ferrosilite

Shungite is a black

This material is actually Serpentine

which comes in many forms and color variations

The mines these stones are sourced from are primarily copper mines

Amethyst 8mm Faceted Puff Square - 15-16 Inch HPS07082022 Hypersthene is often categorized asAmethyst 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