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Green raw stones

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Rocks and Minerals247 of 269Looks like Amethyst Any ideas what this could be?
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    Posted 6 years ago

    TinyT
    (24 items)

    Any ideas what these could be, they are green translucent and glow bright purples blue under UV light and green under a Chelsea filter.

    Mystery Solved
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    Comments

    1. TubeAmp TubeAmp, 6 years ago
      Green Florite.

      T A
    2. TinyT, 6 years ago
      Thanks, I will look into that now. It's not something I have heard of before.
    3. TinyT, 6 years ago
      Do you think it would be worth getting it faceted?
    4. TubeAmp TubeAmp, 6 years ago
      That's up to you, the stones with natural fractures are going to break, so the finished goods from them will be small. It's also a soft stone wear wise.

      http://geology.com/minerals/fluorite.shtml

      T A
    5. TinyT, 6 years ago
      Thanks I will look into it.
    6. kyratango kyratango, 6 years ago
      With the green under Chelsea filter, may be rather raw Paraïba tourmaline
      https://books.google.fr/books?id=qDuSyVsv4VEC&pg=PA82&lpg=PA82&dq=fluorite+chelsea+filter&source=bl&ots=xqyi5Qcqyu&sig=nHQB913qSFK87JTQTGQ1wAYe2Lc&hl=fr&sa=X&ved=0CCMQ6AEwAmoVChMI0IqErL74xgIVSD0UCh3EcgNY#v=onepage&q=fluorite%20chelsea%20filter&f=false
      http://www.gia.edu/cs/Satellite?blobcol=gfile&blobheader=application%2Fpdf&blobheadername1=Content-Disposition&blobheadername2=MDT-Type&blobheadername3=Content-Type&blobheadervalue1=attachment%3B+filename%3DSP06A1.pdf&blobheadervalue2=abinary%3B+charset%3DUTF-8&blobheadervalue3=application%2Fpdf&blobkey=id&blobtable=GIA_DocumentFile&blobwhere=1355958132315&ssbinary=true




    7. TubeAmp TubeAmp, 6 years ago
      Do a hardness test on a hidden side you don't mind scratching. A steel knife blade is usually a 5.5, and a pre 1982 cent is a 3, fluorite is a 4. If the cent doesn't scratch it but the knife does, we know it's not Quartz, Tourmaline, Sapphire, etc.

      T A
    8. kyratango kyratango, 6 years ago
      Oh! Good trick/test, T.A!
      I'll keep it in note :-)
    9. TinyT, 6 years ago
      I have a knife only, as I'm not from the states I don't have the coin.
      The knife does scratch, the stone appears to be quite soft.
    10. TinyT, 6 years ago
      Quite sure Tubeamp is correct. But thanks for the advice.
    11. TubeAmp TubeAmp, 6 years ago
      So it's below 5.5 on Mohs Scale of Hardness. So fluorite is still in the running.

      T A
    12. TinyT, 6 years ago
      I also had a look at a few other specimens of raw green fluorite on the web and it looks alike in colour and structure. So my bets are on green fluorite.
    13. TinyT, 6 years ago
      Maybe you can check on my other mysteries too !

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