Mother of Pearl, also known as Nacre, is an iridescent composite of organic and inorganic material most known for being the coating of pearls. It i...

Abalone Shell is strong and is made of stacked calcium carbonate tiles. When the abalone shell is struck, the tiles slide instead of shattering abs...

Roman glass that has been turned into contemporary beads refers to ancient Roman glass artifacts (often shards or fragments) that are carefully sal...

Unlike most gemstones found within the Earth, pearls are organic. Simply, they grow inside the shells of certain species of oysters and clams. Some...

Unlike most gemstones found within the Earth, pearls are organic. Simply, they grow inside the shells of certain species of oysters and clams. Some...

Unlike most gemstones found within the Earth, pearls are organic. Simply, they grow inside the shells of certain species of oysters and clams. Some...

Unlike most gemstones found within the Earth, pearls are organic. Simply, they grow inside the shells of certain species of oysters and clams. Some...

Unlike most gemstones found within the Earth, pearls are organic. Simply, they grow inside the shells of certain species of oysters and clams. Some...

Moonstone naturally occurs in a broad spectrum of colors, but is most commonly associated with white, gray and peach. It's soft chatoyancy is remin...

Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. All species of garnets possess simila...

Diopside is a calcium and magnesium silicate mineral. It is transparent or translucent, and can display a nearly emerald green color due to the pre...

Boulder Opal is a golden-brown to dark brown stone, displaying these colors in patterns of parallel bands. It is considered a precious Opal, and fo...

Diamond is a rare, naturally occurring mineral composed of pure carbon. Although most people think of diamonds as colorless, they actually occur i...