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Lapidary / Gemstone Community Forum
March 26, 2019, 01:56:03 am
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Kelly Mine Smithsonite Wire Wrap

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Author Topic: Kelly Mine Smithsonite Wire Wrap  (Read 647 times)
Mark
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« Reply #15 on: August 28, 2015, 10:40:39 am »

Almost forgot, Hemimorphite, it has incredible blues too, and has gotten much more popular the last few years.

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rocks2dust
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« Reply #16 on: August 28, 2015, 03:45:43 pm »

I agree that Peruvian opal can also look like that. I'll add that chrysoprase (RI 1.53-1.54, SG 2.58-2.64) can sometimes be that aqua blue color. Smithsonite (RI 1.621-1.849, SG 4-4.65) and hemimorphite (RI 1.614-1.636, SG 3.3-3.5) are both very soft and scratch very easily, but you likely don't want to do a scratch test on a finished stone. If the back is flat and polished and you know anyone with a refractometer, that would narrow things down, as would a specific gravity test.
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