RARE COLLECTORS PARAIBA TOURMALINE SPECIMEN [S267]

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About This Auction		About This Seller: sedagems
Minimum Bid (USD)		Feedback Rating	100.00% Positive
Current Bid (USD)	0.00	Member Since	July 19, 2007 in Australia
Bid Increment	5	View feedback Send seller message View 1493 other auctions from this seller More about this seller
Bids Placed	0
Starting Bid (USD)	380.00
Reserve Price (USD)	none
Starts	August 19, 2008 8:15 PM
Ends	August 22, 2008 8:15 PM	Basic Shipping Information
Auction Category	Tourmaline Gemstones > Rough	Shipping Cost	3.00 paid by buyer
Auction ID	21602	Shipping Insurance (optional)	12.60
Ends in 23 hours 53 minutes
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Gallery

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Description

RARE Paraiba tourmaline rough specimen in its host rock

These cupriferous tourmalines from the Mina da Batalha in the Federal Brazilian State of Paraiba are small, rare and precious. Their spirited turquoise to green colours are such as are not found in any other gemstone in the world. The exclusiveness of this legendary find makes these rare gemstones real treasures.

Normally, iron, manganese, chrome and vanadium are the elements responsible for the beautiful colouring in tourmalines. The Paraiba tourmaline is different: it owes its splendid colour to copper, an element which has never before been observed in a tourmaline. Indeed quite a fair proportion of its weight consists of copper. But scientists have discovered that it often also contains manganese.

In the Paraiba tourmaline, the interplay between these two elements gives rise to a variety of fascinatingly beautiful colours: emerald green, turquoise to sky blue, sapphire blue, indigo, bluish-violet, and purple.

Some top stones have sold for over 50,000 per carat

weight 145 CTS

size 38x35x13 MM

AS WITH ALL OUR STOCK YOU MAY RETURN IT FOR A FULL REFUND IF NOT PLEASED.