Andamooka Precious Black Opal – 15.3 ct Rectangular Cabochon (South Australia) – Hand-Cut with Intense Blue-Green Opalescence
✨ Description
Rectangular cabochon of Andamooka Precious Black Opal , from South Australia , weighing 15.3 ct . This stone has been treated exclusively by heating , a traditional method to intensify the natural colors present in the matrix.
The opal displays vivid blue-green reflections that alternate with areas of shiny and structured matrix, creating a very scenic natural effect. The artisanal cut and hand polishing enhance the geometric shape and internal refraction. Ideal for setting or collecting.
📦 Protective and display box included
Each stone comes in its own rigid acrylic and PVC box , ideal for storage, display, and protection. Perfect for collectors and retailers.
📋 Technical details
Stone Type : Precious Black Opal (matrix opal)
Variety : Andamooka
Origin : South Australia
Weight : 15.3 ct
Dimensions : 18 × 14 × 5 mm
Shape : Rectangular cabochon
Treatment : Heating only (no filling or dyeing)
Polishing : Professional, Hand Made
Base color : Dark brown with black areas and blue-green opalescence
🔴 Sold out – unique piece already sold
This natural specimen has been sold. In our shop, each mineral or gemstone is selected as a unique piece.
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