List,
A final note on this auction: I contacted the seller,
Gao Fu Development Ltd, (who had several other fakes
listed in his ebay store). He was glad for the
heads-up and has removed all the items. He said he
had purchased them from a "new" dealer in Hong Kong,
and was already suspicious tha
AL M. wrote:
>Someone mentioned one time of putting tektites in a microwave
>oven for a bit (on high) to try to determine if it is an Earth based
>specimen or a possible tektite. This seems reasonable to me
>but I'm not a real tektite buff. If it is a tektite then it shouldn't
>get hot as ther
Hi Doug and tektite fans,
Someone mentioned one time of putting tektites in a microwave oven for a
bit (on high) to try to determine if it is an Earth based specimen or a
possible tektite. This seems reasonable to me but I'm not a real tektite
buff. If it is a tektite then it shouldn't get hot
All,
I have access to a PIMA (portable infrared mineral
analyzer). These operate on spectral reflectance in
the SWIR spectrum (1300-2500 nanometers). There are
excellent water absorption features in this range.
I'm sure I've run tektites before, but never in direct
comparison with volcanic and
Greetings Doug and List
There may be a non-destructive test that isn't as costly as a microprobe
for tektites.
XRF was used by the Geology & Archaeology departments at WWU to check a
flake (known artifact) against normally prepard XRF samples for composition
similarities (for tracing the source o
John G. wrote:
>Since moldavites are made basically of the same material as green pop
>bottles, checking the refractive index of a faceted stone wouldn't turn up
>anything suspicious...looking for new technology to tell the difference
>between the fakes and the real stones.
Hola John, List,
In response to my post this morning, Dirk Ross sent me the following
message and asked me to pass it on.
Best,
JKGwilliam
At 08:04 AM 7/21/2005, drtanuki wrote:
Dear John,
I study glasses as you may know (especially ancient and modern Chinese
glasses). The glass is from beer bottles made i
Thanks for the interesting follow-up.
During my scuba diving years, I collected Japanese glass net floats. The
majority of them made after 1945 were made of recycled Coke bottles left
behind by USA occupational forces. I've heard recently that counterfeit
floats have been showing up on the m
G'day Folks,
Some of you will remember the questionable Moldavite auction mentioned
earlier in the week. Well after speaking with mineral dealer today I
discovered that it may be what is being termed as "1st Generation" Moldavite
fakes coming mainly from China. The scary thing is that there is now
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