Experienced Gemologists....Guess where I am from! What am I?

Gem Related Discussion
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So difficult to distinguish, was sold as Mozambique.

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Always advise Buyer beware! Thanks for all the input, lot of thought had gone into the responses and I thank you all.

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I was pretty close, I need to play with more lab grown stuff.

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Matthew, thanks for the challenge and practice.

I agree that was definitely not easy to see. Admittedly, the original clues (photos) probably are more obvious to the trained eyes, and I had completely overlooked the striation pattens with the original focus being the fluid-filled inclusions. It was not until you mentioned the LW UV reaction that I re-examined the images.

I recently started taking the IGS PG course and this article is one of the lessons. I am not that far along in the program to have read it yet. Synthetic Gemstone Inclusions - International Gem Society

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Out of curiosity, how was the purchase made? Through a dealer, on-line site, or at a gem show?

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In all honesty, I want to retest at GRS, This stone matches all known inclusions in Montepuez Ruby from Mozambique…had me fooled.

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Well, I haven’t witnessed any material from Mozambique… (writing down note to self…must find examples… ) :slight_smile:

Question on the original immersion images… did you use a polarized filter in the optics? I would be interested in seeing how these striation pattens look under polarized light. If you find the time to do that…

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I did not filter but, you can see the flame-like growth patterns when immersed in benzyl alcohol.

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The only thing I canot distinguish for certain are what appear to be Perettitite. Which would confirm natural origins.

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I am not familiar with that mineral but found this reference… if its what you are referring to.

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It is a mineral discovered by Dr. Adolf Peretti of GRS (Gem research swiss).

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So if you found crystal inclusion in the rough, how would you be able to determine their species? And so far, I have not found any relationship with Perettiite being found in Ruby. Do you have a link to the source of that information?

Sorry to keep bugging… I am just absorbing as much information as I can…

Yeah, just fell down another rabbit hole… :smile:

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Why throw $ at it again? If GIA said synthetic, you can be quite sure it is. With regards the amount of various inclusions, it is likely grown using the flux method.

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