Post subject: Re: Lapis Lazuli - how to tell real from dyed?
Posted: Tue Sep 25, 2012 12:22 pm
New to the Forum or The Quiet Type
Joined: Fri May 11, 2012 6:59 am Posts: 8 Location: Bagram, Afghanistan
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...
Post subject: Re: Lapis Lazuli - how to tell real from dyed?
Posted: Fri Nov 23, 2012 9:21 pm
Valued Contributor
Joined: Tue Mar 13, 2007 11:12 am Posts: 484 Location: Chiang Rai Thailand
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
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