hi steve,
most tektite surface structures are from soil etching,
fast cooled glass is softer at stress zones.
inner bubbles of broken tektites are like anealed glass, cooled more slowly,
less stress.
exposed to the soil less time than the outer tektite...
http://en.wikipedia.org/wiki/Annealed_glass
regards olaf
(collecting tektites ~14y)
www.chief-impactor.de
- Original Message -
From: Daniel rainte...@aol.com
To: meteorite-list@meteoritecentral.com
Sent: Saturday, February 25, 2012 6:50 AM
Subject: Re: [meteorite-list] Steves unproven tektite theory by Steve lol!
Hi all,
Take a look at this website.
http://www.edamgaard.dk/Copy%20of%20VietnamTektites%20edj.htm
Cheers,
Daniel Sutherland
Sent from my iPhone
On Feb 24, 2012, at 11:19 PM, Dan Wray daniel_w...@comcast.net wrote:
Steve,
I am a tektite collector and I agree with you about the so called
etching. If you look at broken fragments of hollow tektites the inside
surface is smooth and the outside textured. You can also see this on
stretched specimens, the stretched area is smooth. This so called
etching is bogus.
Dan Wray
- Original Message - From: Steve Dunklee
steve.dunk...@yahoo.com
To: Meteorite-list@meteoritecentral.com
Sent: Friday, February 24, 2012 1:41 PM
Subject: [meteorite-list] Steves unproven tektite theory by Steve lol!
I believe the features on most tektites are produced during formation
and not by etching. As the molten material reaches the upper atmosphere
they reach a verry cold environment with low atmospheric pressure. The
skin of the material is outgassing while being exposed to sub zero
temps. this outgassing while freezing causes the skin to crystalize in
strange shapes. then they are smoothed off during re entry which reaches
speeds over the speed of sound. when wet limestone mud freezes in winter
it causes similar crystal formations. when you mash them down they look
like the surface of tektites. the molten material travels up to 4 or 5
miles in a molten state where it is quenched by sub zero tempratures
causing crystalization. then re heated during its fall back to earth.
the deep sharp grooves made during cooling are rounded off during re
melting. I have a teardrop with smooth glassy surface on one end with no
etching. if the etching was terestrial the
whole tektite would be etched.
Cheers
Steve Dunklee
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