Featured Stone ID and faceting info please

Discussion in 'Jewelry' started by KSW, Jan 26, 2020.

  1. KSW

    KSW Well-Known Member

    Little charity shop find.
    I’ve not seen facets like this on a pendant before. You can probably see but the best I can explain is on one side a triangle with 3 steps up to a point and on the other side is a step up to a plateau.
    Is this shape recent or has age?
    Any thoughts on the stone - pale yellow at one end and lilac at the other.
    I’ll get a photo on a white background when I get home.
    Thankyou :)
    0C0E3F3F-4D9C-4FD3-B02A-3030764F6973.jpeg E5975761-00E4-43DD-B264-FADF85B7A7DE.jpeg 7DF8E03A-6952-45B1-87AE-52701FE72968.jpeg 356647D7-8767-446F-8237-370D456AE7CD.jpeg 94825CAC-6288-4AE7-A018-B9D5CE0D32BB.jpeg
     
  2. Hollyblue

    Hollyblue Well-Known Member

    Looks like ametrine,it is a step cut stone and and the design has probably been around for many years.
     
  3. KSW

    KSW Well-Known Member

    Off to google :pompous:

    That's it!. Thanks @Hollyblue :)

    Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia.
     
  4. Any Jewelry

    Any Jewelry Well-Known Member

  5. KSW

    KSW Well-Known Member

    It could be that too M. I've just tested it with Mary Contrary and on thermal conductivity she says if yellow Citrine and if purple Amethyst but is Blue John going to get a similar thermal reading or likely to be different ?. I'll google!
    Mary is being sent back for a replacement tomorrow as she is very Contrary.
     
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  6. KSW

    KSW Well-Known Member

    Just googled and once I avoided the healing crystals websites :nurse: the best advice was to scratch it as BJ is softer than Ametrine or to (quote) 'Hit it with the hammer' to see what shape shards broke off:hilarious:.
    Maybe not.
    Wouldn't be anything left after I'd destroyed it!
    No useful info about thermal conductivity.
     
    kyratango likes this.
  7. Hollyblue

    Hollyblue Well-Known Member

    Blue John is fluorite and would test differently.
     
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  8. Ownedbybear

    Ownedbybear Well-Known Member

    Not Blue John. That's a far more opaque thing.
     
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  9. KSW

    KSW Well-Known Member

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  10. Ownedbybear

    Ownedbybear Well-Known Member

    Himself made crystal set radios - as did I when I did Physics a long time ago.
     
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  11. KSW

    KSW Well-Known Member

    My dad is an amateur radio enthusiast and would probably go into great detail about how they work.
    His degree is in Chemistry and I sent him a photo of my uranium beads and he’s sent an email back asking all sorts of questions I have no idea of the answers to and if I want to borrow a Geiger counter!
     
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  12. kyratango

    kyratango Bug jewellery addiction!

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  13. kyratango

    kyratango Bug jewellery addiction!

    Is there enough space left in your dark cabinet for the Geiger counter?
    :bucktooth:;):joyful::joyful:
     
    KSW likes this.
  14. KSW

    KSW Well-Known Member

    Oh yes but it opens a whole new slightly alarming possibility of positive results.
    Edit- and we won’t mention the slight oddness of why a close family member even has a Geiger counter to lend!
     
    kyratango likes this.
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