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December Birthstone - Turquois Featured

Turquoises come from the Sinai Peninsula and Iran; they have more recently been found in Mexico. They were very popular in the late 18th and the 19thC because of their fashionable colour and afford ability.

 

Colour

Turquoises are famous for their bright, sky blue colour, but they do come in other hues and qualities. While the best pieces are flawless and uniform in colour, many stones

are speckled with dark markings from the surrounding matrix (parent) stone, and these are known as turquoise matrix, As a highly porous substance, turquoise is susceptible to discoloration by acids from the skin and the environment. Sometimes turquoises in antique jewellery have changed from bright blue to a greyish green for this reason.

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