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...
34years, computer specialist
olaf gabel
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hi,
some auktions including rare veevers meteorite, flanged australite fragments
and impactites.
http://search.ebay.de/_W0QQsassZmeteor_catcher
thanks for looking
olaf
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