naturally occuring mineral salt.
Sterling K. Webb
-
- Original Message -
From: "Norm Lehrman" <[EMAIL PROTECTED]>
To: "MARK BOSTICK" <[EMAIL PROTECTED]>;
Sent: Friday, March 10, 2006 9:55 A
This same "rainbow" effect is often seen on old glass object that have been
subjected to the elements for a number of years. Over the years, I've
found old medicine bottles, window glass and even an old pair of
wire-rimmed spectacles that displayed this effect. Some of the old timers
here in
Mark & list,
About five years ago, as Cookie and I were helping our
main Chinese supplier unpack at Tucson we found a
couple of dozen like you have pictured. The
coloration is a surface patina like Carnival Glass.
We never determined how it formed, but I have seen
similar patinas developed on gh
Hi Mark and list,
within the last 6 months, on eBay, someone was selling large Chinese
tektites that were translucent with a purple tinge, I never managed to
obtain one though. The specimens photos were taken in front of a bright
light to allow you to see the colour coming through from behind
Mark
I have a tektite with a green ridge on it. Normal? Dunno.
Gary
http://www.meteorite-dealers.com
On 10 Mar 2006 at 4:47, MARK BOSTICK wrote:
> Hello list,
>
> Hope everyone is doing well.
>
> This may or may not be interesting, as it may or may not be that unusual.
> However, I have s
It looks like a surface effect of some kind and might be a side effect
of cleaning.
I've seen similar effects on minerals and slag where a thin film or
layer on the surface works like an optical filter. If a surface is
covered in a thin layer of a substance with a different optical index it
w
Sorry didnt get this sent back to list.
--- drtanuki <[EMAIL PROTECTED]> wrote:
> Date: Fri, 10 Mar 2006 03:44:28 -0800 (PST)
> From: drtanuki <[EMAIL PROTECTED]>
> Subject: Re: [meteorite-list] Any interesting (?)
> Chinese tektite
> To: MARK BOSTICK <[EMAIL
Hello Dirk,
Dirk asked; "Are you sure it is within the glass or some substance on the
surface only?'
It does not appear to be on the surface, but I am not sure how the tektite
was cleaned. I did not get the tektite somehwhat dirty as most chinese
tektites usually are. Dimples were clean.
Mark,
Are you sure it is within the glass or some
substance on the surface only? The photo as you said
shows nothing. Sometimes Chinese tektites and other
Chinese rocks and artifacts meet up with artifical
chemicals, food stuffs and other interesting Chinese
techniques or accidents.
If in fac
Hello list,
Hope everyone is doing well.
This may or may not be interesting, as it may or may not be that unusual.
However, I have sorted through and sold a lot of tektites over the years and
this is the only tektite like it I have seen.
A nice average sized dumbell tektite
http://www.
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