Silver Necklace with Turquoise Stones,Jade Stones and Coral Stones

-Turquoise Stone

One of the first gemstones to be mined, turquoise has long been prized for its intense colour, which varies from sky-blue to green, depending on the quantities of iron and copper within it.
Occurrence: – Sky-blue turquoise from Iran is generally regarded as the most desirable, but in Tibet a greener variety is preferred.

-Jade

The most prized variety, imperial jade, is a rich emerald-green, due to chromium. Jadeite commonly has a dimpled surface when polished.
Occurrence: – Jadeite is found in metamorphic rocks and as alluvial pebbles and boulders.
Historically, Guatemala was an important source of jade.

-Coral Stone

-Coral is made up of the skeletal remains of marine animals called coral polyps. These tiny creatures live in colonies which form branching structures as they grow, eventually forming coral reefs and atolls.
-Most corals-red, pink, white, and blue varieties – are made of calcium carbonate. Red coral is the most valuable, and has been used in jewelry for thousands of years.
-Coral has been associated with the protection of children, and parents may still give a gift of coral to their young children.
Occurrence: – Most precious coral is found in warm water. Japanese coral is red, pink, and white. Red and pink coral is also found on the Mediterranean and African coasts, the Red Sea, and the waters off Malaysia and Japan.