tanzanite

It held a tanzanite stone cut in the design of the Uffington horse.

Time Article of 2007 about the popularity of tanzanite.

Its birthstone is the blue turquoise or zircon, and the recently added tanzanite.

When it is first mined, tanzanite is usually a red-brown colour.

The most recent change occurred in October 2002, with the addition of tanzanite as a December birthstone.

Because it is relatively soft, tanzanite is most commonly set in necklaces and earrings.

The normal primary and secondary hues in tanzanite are blue and purple, not violet.

The hue range of tanzanite is blue-purple to purple-blue.

The channel holds themed days such as 'Tanzanite Day'.

Nearly all tanzanite is heated at low temperatures to remove brown undertones and give a more desirable blue/purple color.

He was also nominated as the top five most noteworthy free lance jewelry designers by the Tanzanite Foundation.

The decision was made to shift funds from the formal banking sector into negotiable commodities, such as these were diamonds and tanzanite.

Römer won the Tanzanite 2006 Celebration of Life jewellery design award.

Popular items in both chains included diamond bracelets and earrings and jewelry made with the blue stone tanzanite.

His favorite, from Private Reserve, is a brilliant blue-purple hue called Tanzanite.

The mining of tanzanite nets the Tanzanian government approximately US$20 million annually.

The country is also known for Tanzanite, a type of precious gemstone that is found only in Tanzania.

After heating, tanzanite becomes dichroic.

Most designs are limited editions, and Best is also known for using unusual gems such as tanzanite and mandarin garnet.

The new system's color-grading scales divide tanzanite colors into a range of hues, between blue violet and violet blue.

The ICA's tanzanite information page.

The company claims to sell the world's widest variety of gems, including rarities such as Block D Tanzanite.

From 1967 to 1972, an estimated two million carats of tanzanite were mined in Tanzania before the mines were nationalized by the Tanzanian government.

Tanzanite is sometimes found in other colors, such as green, although technically it would be called 'green zoisite' rather than tanzanite.

The Gemological Institute of America classifies tanzanite as a Type I gemstone, meaning it is normally eye-flawless.