Novembr 16-18—COLUMBIA, SOUTH CAROLINA: Annual show; The Columbia, SC Gem and Mineral Society; Fri. 10-6, Sat. 10-6, Sun. 12-5
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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Mon Sep 03, 2018 8:26 pm 
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Any updates, zbhjzm?


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Mon Sep 03, 2018 10:38 pm 
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Barbra Voltaire wrote:
Any updates, zbhjzm?

Not yet ,the research is still in process.


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Tue Sep 04, 2018 12:47 pm 
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Thank you for replying. :D


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Tue Sep 04, 2018 1:40 pm 
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Turning blue holding my breath :mrgreen: .....


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Tue Sep 04, 2018 2:05 pm 
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1bwana1 wrote:
Turning blue holding my breath :mrgreen: .....


Please post a picture....

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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Fri Nov 02, 2018 4:31 pm 
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Update? Still waiting. :smt006


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Fri Nov 02, 2018 8:19 pm 
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We are all blue by now... :mrgreen:


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 03, 2018 1:02 am 
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Barbra Voltaire wrote:
Update? Still waiting. :smt006

Still processing...
I E-mailed them to ask about the research but got no reply.(The E-mails sometimes get blocked, it happened before).
We will have to wait longer, I guess...


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 1:35 pm 
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Update:
The research has been completed.
They have confirmed that the specimens are indeed gold in quartz inclusion stones. But they also pointed out some features indicating synthetic origin:
1:There is a lot of breadcrumb inclusions in the stones.(breadcrumb inclusions are usually found in synthetic quartz) ( PIC.1)
Image
2:There are needle like tubes in the stones indicating rapid and disturbed growth. ( PIC.2)
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3:The IR spectrum of the stones showed a absorption peak at 3584 cm–1 which matches the IR absorption feature of synthetic quartz.
4:The gold inclusions are very high in purity at around 99.9 percent gold, which is rare in nature.
———————————————————————————————————————
I also have something to add:
Although the features mentioned above are more than enough to confirm synthetic origin in normal case, these stones still have some very sophisticated features. It is difficult to tell how they are made.
1:I found some very special inclusions in one of the specimens. The inclusion is called "angel's feather"( PIC.3), as far as I known , this kind of inclusion only found in natural quartz.
Image
Video: https://www.youtube.com/watch?v=c3_pwGfB61Q
2:Some specimens have typical inclusions that usually found in natural quartz. This kind of inclusions and the breadcrumb are in different layers of the stone( PIC.4). The gold inclusions are only in the layer where there are breadcrumb inclusions present. This suggests that they might used natural quartz to grow these stones.
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3:There are several types of unknown inclusions in the stones: possibly iron oxide inclusions and unknown purple inclusion( PIC.5). Unknown black inclusions,possibly hydrocarbon( PIC.6). Unknown red inclusion( PIC.7).
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4:Some stones have strange cracks which look like the interfaces where two quartz crystals meet. The cracks seem to be naturally stretch over different layers of the quartz, and gold can be found in those cracks( PIC.8). There are also some quartz in quartz structure found in the stones. ( PIC.9)
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5:Lastly, something about the gold inclusions. I examined every wire tips I can find in the stones , they all have pointed tips(no sigh of cutting or pulling) ( PIC.10), the shortest wire I examined is only about 2mm long and still pointed on both ends( PIC.11). Don't know how this is done... There are also many shapeless gold in the stones, they can be as small as bacteria( PIC.12). I don't think they put gold wires and shapeless gold directly on the surface of the seed quartz to grow the specimens. As there are hydrothermal currents in the autoclave, the gold are most likely to be carried away by the current and sink down to the bottom of the autoclave this way. So, I assume that there are gold particles in the nutrient solution in which the crystals grew. The gold wires are most likely formed in the hydrothermal current(imaging algae in river) ( PIC.13), this is why they are hair-like and have pointed tips, I guess... This also explains why the wires have intricate curving patterns.
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Last edited by zbhjzm on Sun Nov 18, 2018 12:01 am, edited 1 time in total.

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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 2:32 pm 
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Would you kindly post a copy of the report?


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 3:07 pm 
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Absolutely exceptional. An amazingly sophisticated fake, a work of art all its own. I gotta get me one of those!


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 4:44 pm 
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Agree - both sophisticated and beautiful! I also would like to get one.


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 7:25 pm 
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The pictures above are taken from different samples.
Please supply a picture of the stone(s) which was tested at GIA and the report #.
Thank you.


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 10:05 pm 
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Barbra Voltaire wrote:
The pictures above are taken from different samples.
Please supply a picture of the stone(s) which was tested at GIA and the report #.
Thank you.

Since this is a scientific examination and free of charge , there is no report. I'm sorry.
Those are the pics of the 3 specimens I submitted to GIA.
Specimen 1 weights 18.3ct, It contains gold wires, you can see the breadcrumb inclusions in this one.
Specimen 2 weights 78.35ct,It contains shapeless gold inclusions.you can see the needle like tubes in this one.
Specimen 3 weights 171ct,this one contains both gold wires and shapeless gold inclusions.


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 Post subject: Re: Hairlike Gold inclusions in Quartz??
PostPosted: Sat Nov 17, 2018 10:20 pm 
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Who did you work with these?
Please supply their name.
Did Nathan Renfro arrange this for you?


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