Andamooka rough opal - 96,78ct
Size approx. 57x38x6mmmm
Andamooka rough stone with sparkling blue, green, purple, orange and red areas.
The Andamooka Matrix Opal has been "carbonized" by me. A process in which the rough stone is placed in a glucose solution and then this glucose is carbonized in a heating process. This gives the stone a dark base to show off the opal inclusions. The rough stone is light gray to white and therefore the opal layers are barely visible without treatment.
The carbonization is permanent. Due to the porous surface of the stone, these types of opals are difficult to polish!
The stone was PHOTOGRAPHED AND FILMED IN WET CONDITION!
