The basics of treating Andamooka matrix opal using the sugar/acid technique.
The slow cooker referred to in the video is a 1.5 quart by Proctor-Silex (available on Amazon for about $19.00). The proper setting for heating the sugar and the acid solution is "low." (Produces 170-200 degrees, approximately).
Негізгі бет HOW TO TREAT Matrix Opal: STEP BY STEP. (Create Your Own Black Opal Gemstones!)
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