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$21.00 USD
Estimated RRP $22.00
Closed
02/03/2018 05:22 am

5.28 ct Great Flash Andamooka Matrix Opal SKU.4

SKU
Dimensions (mm)
16.060 x 11.850 x 4.240mm
Weight (cts)
5.280
Type
Cabochon
Colours

Matrix opal from Andamooka, in South Australia, is a precious opal-included porous rock that is commonly color enhanced (carbon impregnated) to imitate the highly prized black opal from Lightning Ridge in northern New South Wales, Australia. This material has been commercially available since the mid-1950s and is often referred to as “sugar treated.” A basic sugar acid-carbonizing technique is used to carbonize, and thus darken, the cream-colored matrix of prepolished stones so that the play-of-color is more prominent. The carbon impregnator in treated Andamooka matrix opal can be readily identified with low-power magnification.

Origin: South Australia  

Treatment: Sugar-Acid Treatment

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naturalspectragems
naturalspectragems
Natural Spectra Gems PTY LTD [NSG] a has been operating from Australia, Pakistan and Thailand for the last 12 years, wholesaling semi precious and precious gemstones both in cut/polished as well as rough/specimen, exclusively sourced from around the world and especially from Pakistan, Tajikstan, Afghanistan and Kashmir to which, as you would be aware, access is somewhat limited. Because of my ties to these important mining and market environs, the stones I source are of "high to finest" quality at very attractive prices. Please follow our new arrivals on http://naturalspectragems.tumblr.com/ https://www.facebook.com/nsgems https://plus.google.com/NaturalSpectraGems
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    dew1947
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Shipping Details

Shipping:
$8.00 21 days via Registered Shipping
Ships from:
Thailand

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Overview

Listing Type : Standard
Product ID : 693629
Starts : 27th February 2018 10:10 am PST
* All prices are in USD