Hematite Silver Plated 4mm Faceted Rondelle - 15-16 inch 15-16 inch Blue Chalcedony is a naturally

Blue Chalcedony is a naturally occurring soft blue translucent stone

It’s believed that Kublai Khan once offered an entire city in trade for a sizable Ruby

Historically

and much of the black Onyx on the market has been artificially colored

Hematite Silver Plated 4mm Faceted Rondelle - 15-16 inch 15-16 inch Blue Chalcedony is a naturallyHematite is an iron oxide and one of the few gemstones with a metallic luster. When tumbled it can have the look of polished steel. Hematite is black to steel gray or silver gray, as well as brown to reddish brown or red in color. Its name is derived from the Greek word for blood, haima, owing to its red appearance when sliced thinly or powdered.