I would like to sell this necklace but can't remember its original description and the online store where I got it no longer carries it so I can't look it up that way. Blue Chalcedony comes to mind, but I'm not sure. Thank you!

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closed as off-topic by Universal_learner, arkaia, Fred, trond hansen, Friddy Jul 11 at 17:17

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  • $\begingroup$ Blue Chalcedony is a possibility. Another is Lapis lazuli. The necklace stringing seems very crude. $\endgroup$ – MaxW Jun 9 '18 at 6:44
  • $\begingroup$ I wouldn't be surprised if the rock here has been dyed or otherwise artificially manufactured. en.wikipedia.org/wiki/Howlite $\endgroup$ – Friddy Jul 10 '18 at 17:08
  • $\begingroup$ This question was closed because of the age of the question and the lack of additional information to help with a better answer. $\endgroup$ – Friddy Jul 11 at 17:17

My first guess with that rich a blue would always be Lapis Lazuli, Azurite is also a strong candidate and you can get Turquoise that dark but it's rarer. Unfortunately without rather destructive testing of a piece there's not a lot to tell the three apart in this sort of polished from.

  • $\begingroup$ That absolutely looks like lapislazulli $\endgroup$ – Universal_learner Jul 11 '18 at 19:23

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