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Riddle of the obscure gem
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=19&t=21073
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Author:  cascaillou [ Wed Sep 23, 2015 10:44 pm ]
Post subject:  Re: Riddle of the obscure gem

true, but for the purpose of the riddle I had to keep things simple, and neptunite most certainly appears black.

For the record, hematite is another stone that looks black but is actually rust-red (this is easily seen in very thin flakes, or when performing a streak test)

Author:  Nathan Renfro [ Wed Sep 23, 2015 11:42 pm ]
Post subject:  Re: Riddle of the obscure gem

jimsfault wrote:
hey everyone!
i got it.
it's neptunite!


I think you are on to something Danny. =D>

Also http://www.gia.edu/gems-gemology/lab-no ... -Neptunite

Author:  cascaillou [ Thu Sep 24, 2015 10:33 am ]
Post subject:  Re: Riddle of the obscure gem

well done jimsfault!

Author:  Gabroo [ Thu Sep 24, 2015 11:17 am ]
Post subject:  Re: Riddle of the obscure gem

was a good riddle Cascaillou, and well done all winners for solving it...

Author:  Dan&Sally [ Tue Oct 06, 2015 12:48 am ]
Post subject:  Re: Riddle of the obscure gem

This would suggest the paradox of water. Perhaps an Opal, and not a pearl. I am as dark as the night, perhaps a black opal? and perhaps I should have read the answer from page 3

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