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 Post subject: Re: G&G eBrief Brainteser
PostPosted: Tue Sep 06, 2011 6:09 am 
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ok here is the answer: its hydrogen clouds in flower-shaped with six symmetrical petals
The crystallographic relationship of the flower-shaped cloud to the orientation of the octahedral form makes this diamond unique. The cutter capitalized on this striking natural
form.

there are many amazing hydrogen patters seen in diamonds, like butterfly, mask shapes and...

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 Post subject: Re: G&G eBrief Brainteser
PostPosted: Tue Sep 06, 2011 7:38 am 
Thanks :D I'll remember that.


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 Post subject: Re: G&G eBrief Brainteser
PostPosted: Tue Sep 06, 2011 8:33 am 
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here is DiamondView images of butterfly hydrogen cloud in two identical black diamonds this hydrogen cloud is cause of black color in the diamond.
Attachment:
2011-09-06_165712.png
2011-09-06_165712.png [ 36.6 KiB | Viewed 2277 times ]
Attachment:
2011-09-06_165725.png
2011-09-06_165725.png [ 50.06 KiB | Viewed 2277 times ]

this hydrogen cloud has a unique three-dimensional shape reminiscent of a Venetian
party mask.
Attachment:
2011-09-06_165942.png
2011-09-06_165942.png [ 73.81 KiB | Viewed 2277 times ]

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 Post subject: Re: G&G eBrief Brainteser
PostPosted: Tue Sep 06, 2011 8:45 am 
Thanks again. Those are pretty. Why does the hydrogen appear dark? Is it minute gas bubbles or free ions in the lattice?


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 Post subject: Re: G&G eBrief Brainteser
PostPosted: Tue Sep 06, 2011 9:13 am 
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regarding those black diamonds,
unlike common natural black diamonds which the black appearance is cause by Black graphite inclusions in these diamonds After nitrogen, hydrogen was the most abundant impurity. The dense hydrogen clouds are responsible for the natural black color.

This diamond has an X-shaped hydrogen cloud in its center, with symmetrical etch channels on all four sides of the cloud.
Attachment:
slice.png
slice.png [ 103.6 KiB | Viewed 2274 times ]



aslo check this topic viewtopic.php?f=20&t=14075&start=15 , i've posted some diamond slices with cubic hydrogen cloud patterns.

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 Post subject: Re: G&G eBrief Brainteser
PostPosted: Tue Sep 06, 2011 10:36 am 
And thanks again.... Each day brings something new (I'm glad to say).


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