TOURMALINE IN QUARTZ SPECIMEN 208 CARATS MY T 830

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About This Seller: Mygems

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Feedback Rating 99.62% Positive
Current Bid (USD) 0.00 Member Since 12 Jun 2008 in Australia
Bid Increment (USD) 1.00
Bids Placed 0
Starting Bid (USD) 12.00
Reserve Price (USD) none
Starts March 17, 2010 10:35 PM
Ends March 20, 2010 10:30 PM Basic Shipping Information
Auction Category Tourmaline Gemstones > Tourmaline Specimens Shipping Cost 3.00 paid by buyer
Auction ID 145910 Shipping Insurance (optional) 7.00

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Description

TOURMALINE  IN  QUARTZ SPECIMEN 

SPECIMEN SIZE 47x 34 x 26 mm

SOURCE BRAZIL

THIS IS A TOURMALINE IN ITS NATURAL HOST ROCK.

 THIS SPECIMEN WAS MINED IN BARZIL.

TOURMALINE HAS A WIDE VARITY OF COLORS.

USUALLY, IRON-RICH TOURMALINES ARE BLACK TO BLUISH-BLACK TO DEEP BROWN, WHILE MAGNESIUM-RICH VARIETIES ARE BROWN AND YELLOW, AND LITHIUM-RICH TOURMALINES ARE PRACTICALLY ANY COLOR: BLUE, GREEN, RED YELLOW, AND PINK ETC. RARELY IT IS COLOURLESS. BI-COLORED AND MUTLICOLORED CRYSTALS ARE RELATIVELY COMMON. REFLECTING VARIATIONS OF FLUID CHEMISTRY DURING CRYSTALLISATION. CRYSTALS MAY BE GREEN AT ONE END AND PINK AT EH OTHER, OUR GREEN ON THE OUTSIDE AND PINK INSIDE: THIS TYPE IS CALLED WATERMELLON TOURMALINE. SOME FORMS OF TOURMALINE ARE DICHROIC, IN THAT THEY APPEAR TO CHANGE COLOR WHEN VIEWED FROM DIFFERENT DIRECTIONS.

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