[meteorite-list] moldavite splashforms w/ artifacts. Inquiry?

From: drtanuki <drtanuki_at_meteoritecentral.com>
Date: Thu Apr 22 10:14:09 2004
Message-ID: <3EB03A8A.F3C2E9C4_at_tkc.att.ne.jp>

Dear List,
   Mr. Heinen's book is one of the best and now certainly the cheapest books
about tektites. It is a super buy at $12! If you don't have one and are
interested in tektites it is a must. Sincerely, Dirk Ross...Tokyo

Guy Heinen wrote:

> Hi list and Zelimir,
>
> as there is a lot of discussion on tektite sculpture, have a look on my
> site '<http://webplaza.pt.lu/guyhein/thebook.html>.
> It has a link to the entire chapter 'tektite sculpture' of my book. Enjoy!
>
> The special offer ($12 + shipping) for a signed copy of my book is valid
> until next Sunday (inclusive).
> All the best from Luxemburg,
> Guy
>
> At 21:25 30/04/2003 +0200, Zelimir Gabelica wrote:
>
> >Hi Guy and list,
> >
> >
> >Regarding moldavites and their chemical etching/weathering, let me describe
> >an extraordinary tektite I have acquired a couple of years ago, that might
> >throw some light (or trouble ?) to the debate.
> >
> >This is an about 8 cm elongated "cylindrical dumb-bell" shaped dark green
> >tektite, about 2 cm thick, actually a very ordinary shape and morphology.
> >But there is more.
> >It is not complete but cut into 2 matching halves. NATURALLY cut! And the 2
> >cut faces are PERFECTLY PLANAR so that one would believe someone would have
> >cut it with a giant knive while still in a semi molten (very viscous) state.
> >So far, nothing so very strange.
> >But there is still more.
> >The planar (cut faces) are also CORRODED, with etching fugures very similar
> >to those present on the external surface.
> >
> >This means to me that once the tektite was "cut" (or naturally broken), it
> >was further submitted to the usual etching process on its falling site. And,
> >the 2 cut surfaces, although etched, still match so perfectly that, when
> >sticked together, one would not even guess the tektite is broken. It is
> >obviously difficult to say if every corrosion figure of the face "a" would
> >perfectly match the similar corrosion counterpart (if any) on the face "b".
> >Although some more carefull investigationof this feature could be
> >interesting...
> >
> >OK, let's assume the tektite fell in a semi molten state, broke through some
> >shock and then started its weathering process quasi evenly on every
> >accessible face, including the 2 broken surfeces.
> >But the question is: why the broken faces are completely PLANAR ?
> >When an elongated tektite is broken by, say, a shock, the faces would
> >probably not be planar if the tektite is hard. This example however suggests
> >that the breakage resulted, for some obscure reason, in generating 2 planar
> >faces...
> >
> >My question to the list experts: why was the tektite "naturally" broken in a
> >so strange way? I say "naturally" as I doubt some human (if any present 19
> >MY ago ??), when he would notice the tektite falling, would take his axe or
> >giant knive and hack it while not yet solidified (and thus probably hot).
> >
> >I'd try to show you a photo of this strange tektite within the next days. At
> >least, this all could suggest (prove ?) that some mechanical breakage
> >occurred BEFORE the etching process even started. If so, the breakage or
> >cutting first provided 2 smooth planar surfaces that soon started their
> >etching process.
> >
> >I got this strange tektite a few weeks too late to be included and described
> >in Guy's wonderful book. But rather than awaiting for the enxt edition, I'd
> >like to hear first about Guy Henien (or anybody else's) expertized comments.
> >
> >All the best
> >
> >Zelimir
> >
> >Note: Guy Neinen's book & CD Rom " TEKTITES - witnesses of cosmic
> >catastrophes" will also be available for sale, on consignment, at the next
> >Ensisheim show
> >-------
> >
> >At 17:28 28/04/03 +0200, Guy Heinen wrote:
> > >Hi list,
> > >
> > >as I must notice, besides some real specialists, many list members have
> > >only poor notions of tektites.
> > >In the late nineties, I've written a book on tektites: 'TEKTITES -
> > >witnesses of cosmic catastrophes',
> > >dealing with almost all questions about tektites. Have a look at my site
> > ><http://webplaza.pt.lu/guyhein/index.html>
> > >For the members of this list, I'll offer my book from now to next Sunday
> > >for the bargain price of only 12!!!$ or €, postage not included.
> > >Please contact me off-list.
> > >Thanx and my best wishes,
> > >
> > >Guy Heinen
> >******************************************************
> >Prof. Zelimir Gabelica
> >Groupe Sécurité et Ecologie Chimiques (GSEC) - ENSCMu
> >3, rue A. Werner
> >F-68093 MULHOUSE Cedex, FRANCE
> >Tel: +33 (0)3 89 33 68 94
> >FAX: +33 (0)3 89 33 68 15
> >e-Mail: Z.Gabelica_at_uha.fr
> >******************************************************
> >
> >
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Received on Wed 30 Apr 2003 05:05:15 PM PDT