354 CTSTOURMALINE MUSHROON SPECIMEN MS 1392

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors
Certified Gemstone

TOURMALINE  MUSHROOM  SPECIMEN 

SPECIMEN SIZE 58 XC 36 X 44

SOURCE BRAZIL

THIS IS A TOURMALINE IN ITS NATURAL FORM.

 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.

10h 17m 39s

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Pricing & Details

Bid Increment $1.00
Starting Bid $99.00
Auction ID 305771
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Viewed 469 times
Starts 13th Dec 2017 7:00pm PST
Ends 16th Dec 2017 7:00pm PST

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