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1 hour ago, Morlock said:

I'm assuming that's a tektite from Australia. Nice one.

Thank you! Yes, it is a tektite from Australia, Australite. This is one of the rarest shapes (a disk). It is only 1 cm. in diameter. This image was taken with a microscope.

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That's interesting and beautiful. I think it is curious how the bubbles are so round and not elongated. I don't know lots about tektites, but i thought due to the speed at which they are formed that those bubbles would look a bit different, but what do i know besides it is an awesome looking specimen. Any idea why the color is golden? ht 

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2 hours ago, hardtimehermit said:

That's interesting and beautiful. I think it is curious how the bubbles are so round and not elongated. I don't know lots about tektites, but i thought due to the speed at which they are formed that those bubbles would look a bit different, but what do i know besides it is an awesome looking specimen. Any idea why the color is golden? ht 

The color of it is black, but it is so thin that you could see through it. So I took these images when it was lit from behind.

 

Here is an article that describes this and similar shapes

http://adsabs.harvard.edu/full/1963Metic...2...36B

 

Edited by Mila
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On 1/18/2021 at 8:20 AM, Morlock said:

Did you find it yourself?

Do you know if one can still find these in the field? Are these found in one specific location or does Australite refer to any tektite found in Australia.

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21 hours ago, Morlock said:

Do you know if one can still find these in the field? Are these found in one specific location or does Australite refer to any tektite found in Australia.

All tektites that are found in Australia are called australites. Could you still find one? I believe you could, but it will not be easy. Probably the most prized shape of australites is flanged button. I was not able to find any complete one for sale.

 

Here is a recent article that you might find interesting   https://www.pnas.org/content/117/3/1346

 

BTW if you would like to buy one beware of fakes https://www.meteorite-times.com/aussie-flanged-button/

Edited by Mila
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