Item Information

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

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This is a natural untreated rough  tourmaline crystal .It has a red purple body colour with a dark top line.It is  ready for cutting or great for any collection

Mohs scale  7-7.5

Weight  31.80 cts app

Size  19.2 x 19.9 x 18.8 mm

 Mined in Brazil

Photo has been taken with the stone dry.

We have some cut  multi coloured stones in our sister site SEDAGEMS on this site under tourmaline.


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.

1d 20h 45m 27s

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Pricing & Details

Bid Increment $1.00
Starting Bid $25.00
Auction ID 204114
Watchers 2 watching
Viewed 540 times
Starts 23rd Oct 2016 5:02pm PDT
Ends 26th Oct 2016 5:00pm PDT

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