Australian Facetors' Guild Limited

material question

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  • 02 Jan 2019 2:04 AM
    Message # 6978681

    Hi All (warning silly question below)

              I have been looking at some designs in the 2019 comp and one is calling for a material synthetic quartz hat is the common name for this material before I go and throw a lump of CZ on the dop 

    Regards Bruce 

    Please Note that a revised schedule for the 2019 Competition is ready for down loading on the front page of the web site.

    Cheers

    Ed 



    Last modified: 12 Jan 2019 6:56 AM | Anonymous member (Administrator)
  • 02 Jan 2019 3:49 PM
    Reply # 6979472 on 6978681

    It will have to be synthetic quartz only, there are a few suppliers in OZ.


  • 02 Jan 2019 5:57 PM
    Reply # 6979537 on 6978681
    Thanks Frank
  • 03 Jan 2019 7:12 AM
    Reply # 6980453 on 6978681

    Hi Bruce,

    The answer to your question is Hydrothermal Quartz. 

    There was also some cobolt blue quartz on the market that crystallised from the flux in a steel mill.  It was cut and polished as hexagonal obelisks but I haven't seen any at gem shows for a while. 

    Regards

    Gordon Perkins

  • 04 Jan 2019 12:54 PM
    Reply # 6982724 on 6978681

    Hi Ed,

    I couldn't find the site on the website, but can see the confusion as Any Coloured Cubic Zirconia is listed in the diagram for section I.10.3 but Any Coloured Quartz listed in the Show Schedule for that section.  Of course this would allow for both natural and synthetic Quartz.

    However  N.10.3 is listed as Any Colour Synthetic Quartz in the show schedule.


    regards

    Gordon

  • 05 Jan 2019 10:33 AM
    Reply # 6984135 on 6978681

    Absolutely no help at all !!

    I think that all the conversations on this topic have referred to the 2019 AFG Competition - not other Competitions!

    John



  • 05 Jan 2019 12:51 PM
    Reply # 6984263 on 6978681
    Anonymous member (Administrator)

    Guys, on the Website "Home" page,on the right hand side of the screen, scroll down a bit, under AFG 2019 Competition, the change to the schedule is stated there.

  • 06 Jan 2019 9:00 AM
    Reply # 6985111 on 6978681
    Anonymous member (Administrator)

    The fact still remains that the schedule still calls for synthetic quartz in the novice section referred to. Why not just quartz?

  • 06 Jan 2019 11:42 AM
    Reply # 6985241 on 6978681

    Hi Bruce,

    It's probably too late to change that now.  But if you are looking for mm quartz, Lucy who sells at the SE Qld gemshows has hydrothermal quartz in a variety of colours.

    I would go for the lighter colours.  The Amythest coloured synth quartz I bought a few years ago was so saturated it reflected badly.  I am ready to throw the rest out.

    I' ve seen some stones cut from the orange that looked ok.

    Regards

    Gordon Perkins.

    Last modified: 07 Jan 2019 9:38 AM | Anonymous member
  • 07 Jan 2019 8:31 AM
    Reply # 6986210 on 6978681
    Anonymous member (Administrator)

    I do not cut synthetics normally (one recent exception was a 4ct Biron emerald). I certainly would not be cutting this one since I have been Open class for more than 30 years, although it is a long time since I cut for other than aesthetic appeal competitions. One of the main reasons for dropping out of comp cutting was the prevalence of synthetics - you put a lot of time into a stone and end up with a pretty, but worthless result.

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