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 Post subject: Inclusions in Blue Sapphire from Laos
PostPosted: Sat May 30, 2015 2:06 pm 
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Joined: Mon Apr 06, 2015 10:37 am
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Location: Latina- Rome
Dear friends,
I have recently bought a pendant with a blue sapphire from Laos (it has been sold on a TV show).
Treatment was not specified by the seller, but I presumed that it has been heated.
The sapphire presents a deep blue.
Here the sapphire
Image
Under the microscope, with diffused light, I observed these inclusions
Image
With higher magnification
Image
These inclusions seem to me "liquid" but I see also some tubular structures...
There is also straight color zoning, I guess
Image
Image
What do you think about these inclusions?
Do you see signs of heating?
Thank you for your kind replies!
Ciao
Luca


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 Post subject: Re: Inclusions in Blue Sapphire from Laos
PostPosted: Sat May 30, 2015 3:40 pm 
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Location: San Francisco
Although not ideally photographed, I the circular atoll like inclusions with snowball centers are the result of heat treatment.


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 Post subject: Re: Inclusions in Blue Sapphire from Laos
PostPosted: Sun May 31, 2015 4:29 am 
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Joined: Mon Apr 06, 2015 10:37 am
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Location: Latina- Rome
Thank You Barbra!
I supposed it was heated
grazie :D


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