Product ID A2318
Type Matrix opal (Type 3)
Variety Andamooka treated matrix opal
Opal weight 12.2 ct
Body tone N3
Transparency Opaque
Play-of-colour Yellow-multicolour
Brightness 2.5 - 3
Pattern Mixed, broadflash
Shape Oval
Face Medium to high dome
Opal size 18.9 x 16.5 x 6.7 mm
Origin Andamooka (Australia)
Note This opal has been treated by sugar/acid in order to produce a black body tone. The blackening treatment is in common use for this type of opal and usually applied to all Andamooka matrix material.


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