Abalone Shell 5-10 Chip Bead - 15-16 Inch Cube It is considered a precious

It is considered a precious Opal

creating striking veins of deep blue to sky blue hues often interlaced with white or colorless streaks

with inclusions of white to colorless translucent or transparent

banded variety of microcrystalline quartz (chalcedony) known for its vibrant

making them a category of their own

Abalone Shell 5-10 Chip Bead - 15-16 Inch Cube It is considered a preciousAbalone 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.