Hi All, I have just bought this ring and have been told it’s an Iranian Turquoise. Can you please help me establish whether it’s real? I am not sure what to think about the white markings on the stone, hoping it’s not a dyed stone imitation. Thank you in advance!
I’m not familiar with Persian turquoise but, what I can tell you is that several American mines have turquoise wiith very light matrix’s from the host rock.
The flaking of your stone however, looks a bit suspect with the brown just underneath it. Hopefully some other turquoise experts in here can help you more.
Thanks, I have been looking at it closely and I am unsure whether it’s flaking actually or just seems like another mineral within the stone.
Here is a zoomed pic. Hopefully someone else can weigh in as well, cheers.
That closeup picture looks like it is painted and flaking off.
I thought the same. I hope she can return it.
Now that is an odd one. It actually does look like paint that’s flaking; I’ve never seen such a thing. Like concrete underneath.
Yeah. My vote is that it has a flaking issue.
Return it if you can.
How to Perform the Acetone Test.
Get a cotton swab and acetone: Use a standard cotton swab and pure acetone, such as nail polish remover, as the active ingredient.
Dip the swab: Dip the cotton end of the swab into the acetone.
Choose an inconspicuous spot: Select a hidden area of the stone, such as the back or underside, to perform the test.
Gently rub the stone: Lightly rub the area with the acetone-dipped cotton swab.
Check for color transfer: After rubbing, check the cotton swab and the stone.
What to Look For
Dyed Stone:
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If the cotton swab turns blue or green, or if a white or lighter patch appears on the stone where you rubbed, the stone is likely dyed. This is because many common imitations, such as howlite and magnesite, are white and absorb dyes.
Natural or Stabilized Stone:
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If the cotton swab remains clean and the stone’s color is unaffected, the stone is likely genuine natural turquoise or stabilized turquoise.
Thought I would reference what GIA have to say about Persian turquoise
https://www.gia.edu/gems-gemology/fall-2021-persian-turquoise-ancient-treasure-neyshabur


