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| Stange blue/purple layered gem or stone. No idea. https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=100&t=24743 |
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| Author: | Jshearer510 [ Thu Oct 11, 2018 3:16 am ] | ||
| Post subject: | Stange blue/purple layered gem or stone. No idea. | ||
Need help identifying this as i have tried a jeweler and a geologist with both having no idea and one suggesting it was man made. It was retrieved from a river bed about 6 or so feet down in a clay layer from tasmania near a town named maydena.
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| Author: | Stephen Challener [ Thu Oct 11, 2018 10:06 am ] |
| Post subject: | Re: Stange blue/purple layered gem or stone. No idea. |
It appears to be a classic blue goldstone, a man-made glass with crystals of copper that give it a sparkling effect. Its shape doesn't look very natural either. I can't say anything for sure from a picture but that's where my money would go. It's amazing how often manmade glass is found in places it seems like it shouldn't occur. |
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| Author: | Isi [ Fri Oct 12, 2018 9:36 am ] |
| Post subject: | Re: Stange blue/purple layered gem or stone. No idea. |
I have a former student who became a jeweller and once set on gold a man-made glass of that kind (orange version). He had it back from Turkey or Egypt and was convinced it was a sunstone. Looks like he did't benefit much of my gemological teaching  Definitely this stone seems to be the classical night blue version of the man-made aventurescent glass. Look (with a loupe) for the triangular shape of the copper platelets inside. |
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