12.75 CTS QUALITY TOURMALINE SPECIMEN -STUNNING [S7411 ]

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors
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TOURMALINE SPECIMEN

This is a quality natural specimen showing watermelon colours  on top of the stone.Naturally terminated.This is a great specimen for any collection.

 

TOURMALINE BIRTHSTONE FOR OCTOBER.

NATURAL UN HEATED

MINED IN TANZANIA

 

MOHS SCALE 7-7.5

WEIGHT  12.75 CTS

SIZE 19X12X8  MM

Tourmalines are a class 2 gemstone which means inclusions are acceptable

 

 

 

 Tourmaline is a crystal silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline gem stones come in a wide variety of colors.Tourmaline has a variety of colors. Usually, iron-rich tourmalines are black to bluish-black to deep brown, while magnesium-rich varieties are brown to yellow, and lithium-rich tourmalines are almost any color: blue, green, red, yellow, pink etc. Rarely, it is colorless. Bi-colored and multicolored crystals are common, reflecting variations of fluid chemistry during crystallisation. Crystals may be green at one end and pink at the other, or green on the outside and pink inside: this type is called watermelon tourmaline. Some forms of tourmaline are dichroic, in that they change color when viewed from different directions.

16h 11m 24s

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Pricing & Details

Bid Increment $1.00
Starting Bid $110.00
Auction ID 274660
Watchers 2 watching
Viewed 438 times
Starts 8th Dec 2016 8:02pm PST
Ends 11th Dec 2016 8:00pm PST

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