Turquoise is among the oldest known gemstones. It has been mined since 3,20 BC. It
graced the necks of Egyptian Pharaohs and adorned the ceremonial dress of
early Native Americans. This robin egg blue hued gemstone has been
attributed with healing powers, promoting the wearer's status and
wealth, protection from evil and brings good luck.

Turquoise is an opaque, light to dark blue or blue-green gem. The finest color is an intense blue.
Turquoise may contain narrow veins of other materials either isolated or as a network.
They are usually black, brown, or yellowish-brown in color. Known as the matrix,
these veins of color are sometimes in the form of an intricate
pattern, called a spider vein.

To improve its color and durability, turquoise is commonly permeated with plastic, a stable
enhancement. It is also sometimes permeated with colorless oil or wax, which is
considered not as stable as plastic. Some turquoise is dyed to improve
its color, but rarely, as this is an unstable enhancement.

Special care is required for turquoise regardless of whether or not it is enhanced. A porous
gemstone, turquoise can obsorb anything it touches. Avoid contact with cosmetics,
perfumes, skin oil, acids, and other chemicals. Avoid
dehydrating it or exposing it to heat.



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