0.79 CTS TOURMALINE-WELL CUT HIGH LUSTER. [TRM16]SH

Item Information

Dimensions (mm) 4.9 x 4.9 x 4.1mm
Weight (carats) 0.79 carats
Colors

SEDAGEMS

Hardness:

7

Origin:

Nigeria

Treatment:

None

TOURMALINE BIRTHSTONE FOR OCTOBER.

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.

$99.00 USD

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Pricing & Details

Auction ID 555955
Watchers 21 watching
Viewed 1,568 times
Starts 14th Mar 2016 9:15pm PDT

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About Sedagems

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