Pearl White Round Smooth Natural Beads Necklace 20 Inches pink tourmlaine + Size :10 mm

+ Size :10 mm

Pliny the Elder referred to the mineral as callais (from Ancient Greek κάλαϊς) and the Aztecs knew it as chalchihuitl

+ Color: Shaded Blue

Opals are translucent or transparent and measure between 5 and 6 on the Mohs scale of hardness

Pearl White Round Smooth Natural Beads Necklace 20 Inches pink tourmlaine + Size :10 mmA pearl is a hard, glistening object produced within the soft tissue (specifically) of a living or another animal, such as fossil . Just like the shell of a mollusk, a pearl is composed of (mainly or a mixture of aragonite and in minute crystalline form, which has deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as , can occur. The finest quality of natural pearls have been highly valued as