128 CTS TOURMALINE IN QUARTZ SPECIMEN MS 1394

Item Information

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

TOURMALINE  IN  QUARTZ SPECIMEN 

SPECIMEN SIZE42 X 26 X18 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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$65 mineralman333
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Pricing & Details

Bid Increment $1
Starting Bid $65
Auction ID 305779
Watchers 2 watching
Viewed 882 times
Starts 23rd Feb 2018 7:00pm PST
Ends 26th Feb 2018 2:17am PST

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