Gemstone of The Month: Turquoise

Turquoise is one of those colours that just about everyone loves, and the gemstone Turquoise does not disappoint in the rich variety of its shades of light bluey-green. It is the birthstone of December, bringing colour and light to the dark months of the year.

The chemical composition is aluminium silicate which also contains copper, although the turquoise found in North America actually contains iron rather than aluminium; the latter tends to have dark veining.

Two types of Turquoise are commonly available: African and Chinese, although the stone is mined in many places around the world. African Turquoise tends to be a darker blue/green than Chinese, with darker threading throughout. Both types take polish well and gleam and glitter in jewellery.

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Turquoise has featured in jewellery for thousands of years; it was used by the ancient Egyptians and Aztecs in jewellery and as a decorative stone; King Tutankhamen’s burial mask and tomb was inlaid with turquoise as the stone was a symbol of regeneration; the Mesoamericans created turquoise mosaics; the Chinese carved turquoise into ornaments; it was used by Native Americans in works of art and jewellery; the Tibetans believe in its healing properties and have valued turquoise jewellery for centuries.

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African Turquoise knitted into a delicate bracelet

You can see all the turquoise items in the Granary Knits shop here.