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Lapis Lazuli - how to tell real from dyed?
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=6&t=16743
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Author:  SweaterFreak [ Fri Sep 21, 2012 12:02 am ]
Post subject:  Lapis Lazuli - how to tell real from dyed?

Is there a sure proof method to tell the dyed and natural lapis apart by the picture?
Is having a lot of pyrite indicative of anything at all?

thanks in advance

Author:  Barbra Voltaire, FGG [ Fri Sep 21, 2012 10:10 am ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

One would have to test the stone in person.

Author:  hildebdr [ Tue Sep 25, 2012 12:22 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

I'm in Afghanistan; I see a lot of Lapis. I use alcohol wipes...works every time. A lot of pyrite is indicative of a high percentage of pyrite. High quality Lapis is stark blue with as little pyrite as possible and as little calcite as possible. As in any other material, it's up to the purchaser, or recipient. Some lapis cabachons look great with characteristic pyrite groupings; or patterns. The best blue is about the same color as the topic text...

Author:  Lisa Elser [ Tue Sep 25, 2012 1:40 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

SweaterFreak wrote:
Is there a sure proof method to tell the dyed and natural lapis apart by the picture?
Is having a lot of pyrite indicative of anything at all?

thanks in advance


There's honestly no good way to tell anything about anything with a picture. Think on-line dating :-)

Author:  mehoose [ Tue Sep 25, 2012 11:14 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

:lol:

Author:  World Vin Gems [ Fri Nov 23, 2012 1:17 am ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

Definitely one should take the lab test. I would like to share lapiz i am having it

Attachments:
File comment: Round 14.7x14.7
6.18 ct

LZF01.jpg
LZF01.jpg [ 13.57 KiB | Viewed 9607 times ]

Author:  Lee Little [ Fri Nov 23, 2012 12:09 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

Hi hildebdr,
Alcohol huh? I was thinking acetone (found in nail polish removers) was better. Best regards, Lee

Author:  Conny Forsberg [ Fri Nov 23, 2012 8:31 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

I agree to the use of Acetone but pure 96-98% alcohol is second choice.

Author:  Lee Little [ Fri Nov 23, 2012 9:21 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

I don't know much about the base of dye but in the commercial painting business acetone and lacquer thinner are the two hottest solvents commonly used in the states. Best regards, Lee

Author:  annylenardo [ Thu Jan 24, 2019 3:52 am ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

Wipe your stone with acetone or alcohol. If it loses its color then it's a fake or a poor quality lazuli dyed to imitate better quality lazuli.

Author:  Isi [ Thu Jan 24, 2019 4:12 pm ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

I wonder if SweaterFreak has waited for seven years to get an answer to his (her) question ? :smt005 :smt081

Author:  annylenardo [ Fri Jan 25, 2019 4:04 am ]
Post subject:  Re: Lapis Lazuli - how to tell real from dyed?

Isi wrote:
I wonder if SweaterFreak has waited for seven years to get an answer to his (her) question ? :smt005 :smt081

:roll: :lol:

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