Doublets are more difficult to identify because they often incorporate quantities of colourless potch into the stone.
Natural real opal stone.
Opal offers exceptional individuality within its three main classes.
Opal can be colorless or colored.
The doublets we carry and make are also cut from and made with real natural opal.
If the seam between the backing layer and the opal is irregular it is most likely a real stone.
Gemselect s 100 natural opal is a great place to begin.
Natural genuine ethiopian opal gemstone oval shape 16x9x5 mm multi fire opal handmade polished loose stone beautiful silver jewelry making ahstones.
If the top of the opal.
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At gemselect our opal comes in a.
Why do stones get treated.
In this case look at the side of the stone again and see if the join between the opal and the backing is perfectly flat i e.
Treatments are applied to fix these flaws in the stone.
The structure of natural opal.
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Needless to say these are also referred to as enhanced or treated stones.
Real natural opal has not been changed from its natural state except to be cut and polished into a gem stone.
Precious opal fire opal and common opal.
A genuine gemstone is real but it is treated in some way to enhance its cut or appearance.
If the opal is a natural stone then even with cutting and polishing it may not be entirely symmetrical.
If the opal is a perfect circle or oval then you should have a licensed jeweler inspect it before you make the purchase.
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Its colors can range from white yellow orange and red to green blue brown and black.
This is because man made stones are flattened in the course of processing to remove such irregularities.
Doublets are a little more difficult to identify as they often use a natural potch black colourless opal or ironstone the brown boulder opal host rock backing.
Natural opal is a variety of silica.
The opal man carries many types of natural opal including australian black opal crystal opal white opal boulder opal and opal specimens.
This stone usually contains between 5 and 10 water and is relatively soft its hardness rating is 5 5 6 0 on the mohs scale.