5.8ct Beautiful Oval Andamooka Matrix Opal, Natural Australian Solid Opal,

Item Information

Dimensions (mm) 16.5 x 13.2 x 4mm
Weight (carats) 5.8 carats
Colors

Weight: 5.8ct

Size:  16.5mm X 13.2mm X 4.0mm

Stone:  Andamooka Matrix Opal

Origin: Andamooka, South Australia

Treatment: Carbonisation to darken the host rock. 

Andamooka Matrix Opal is a natural stone found in South Australia. This stone has been treated (with sugar and heat) to darken the host rock and make the opal more visible (this is commonly done for Andamooka matrix). This enhancement results in an extremely bright stone for a fraction of the cost of expensive black opals.

There are two varieties of Andamooka Matrix, this is the hard Limestone-Quartzite variety that takes a good polish and does not require epoxy treatment.

Photos and video taken under standard LED desk lamp.
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$150 valeri21101
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Pricing & Details

Bid Increment $1
Starting Bid $250
Auction ID 776568
Watchers 3 watching
Viewed 1,012 times
Starts 21st Nov 2019 9:55am PST
Ends 26th Nov 2019 3:17pm PST

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