Abalone Shell 5-10 Chip Bead - 15-16 Inch New Jade The presence of chromium is

The presence of chromium is what gives a ruby its red color

Agate has been prized for its beauty throughout history

so it fractures easily

They are lead and nickel free

place natural

Abalone Shell 5-10 Chip Bead - 15-16 Inch New Jade The presence of chromium isAbalone Shell is strong and is made of stacked calcium carbonate tiles. When the abalone shell is struck, the tiles slide instead of shattering absorbing the energy of the blow. The inner layer of the shell is composed of nacre (mother of pearl), which in many species is highly iridescent, which make the shells attractive as decorative objects, jewelry, and as a source of colorful mother of pearl.