[meteorite-list] Possible Tektite

From: Jim Wooddell <jim.wooddell_at_meteoritecentral.com>
Date: Thu, 31 Oct 2013 04:27:39 -0700
Message-ID: <52723EAB.8030409_at_suddenlink.net>

Hi Phil,

Just a thought...did you do any tests to determine what this is?
Hardness? Specific Gravity? The common consciences of the picture is
quartz, so the hardness should be close to 7 mohs and the specific
gravity about
2.65.

A streak plate has a hardness of about 7. So if you took a coffee cup,
turn it over to expose the unglazed ring that it sits on, and try to
scratch the specimen, it should feel like it sliding across the surface,
no scratch or very very little scratch.

If it's something other that quartz, you likely would get a good scratch.

Just saying!

Cheers!

Jim


On 10/29/2013 6:51 AM, Joshua Tree Earth & Space Museum wrote:
> Someone brought this into the museum for an ID. It looks sort of like
> a tektite. It doesn't really look like any slag glass that I've seen.
> No find location was given. Any tektite experts have an opinion?
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27008_zps03ffc3d1.jpg
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27007_zps7cb05a26.jpg
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27006_zps750db031.jpg
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27005_zps5cded8cd.jpg
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27004_zps07aa10ea.jpg
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27002_zps10c0ab1c.jpg
>
> http://i185.photobucket.com/albums/x177/cyphor79/June2011/2013-10-27001_zpsa797a7da.jpg
>
>
>
> Phil Whitmer
> Joshua Tree Earth & Space Museum
>

-- 
Jim Wooddell
jim.wooddell at suddenlink.net
http://pages.suddenlink.net/chondrule/

Received on Thu 31 Oct 2013 07:27:39 AM PDT