[meteorite-list] Anomolous Aluminum Object's..

From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Wed Apr 26 10:24:40 2006
Message-ID: <020401c668e3$bad405c0$f124e146_at_ATARIENGINE>

Hi, Kevin,

    Now that you tell me that they are composed of
aluminum particles and since I looked up Zephyrhills
on a map, I suggest that they are from the solid rocket
boosters for the Shuttle.

    From NASA's web site:
The propellant mixture in each SRB motor consists of an ammonium perchlorate
(oxidizer, 69.6 percent by weight), aluminum (fuel, 16 percent), iron oxide
(a catalyst, 0.4 percent), a polymer (a binder that holds the mixture
together, 12.04 percent), and an epoxy curing agent (1.96 percent). The
propellant is an 11-point star- shaped perforation in the forward motor
segment and a double- truncated- cone perforation in each of the aft
segments and aft closure. This configuration provides high thrust at
ignition and then reduces the thrust by approximately a third 50 seconds
after lift-off to prevent overstressing the vehicle during maximum dynamic
pressure.

    And of course they would be melted and have traveled
at a high speed and all the rest of it. If that's what they are,
they make a pretty neat souvenir, even if they aren't tektites!


Sterling
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----- Original Message -----
From: kevin decker
To: sterling_k_webb_at_sbcglobal.net
Sent: Tuesday, April 25, 2006 8:22 PM
Subject: Re: [meteorite-list] Anomolous Aluminum Object's..


 Thank You Sterling,
I don't know the circumstances of they're origin..I do know I found them in
about a 3 foot suare area in Zephyrhills FL..I do know what they look like
under the Microscope,They are made up of tiny irregular shaped pieces of
aluminum?..that look like river cobbles.except microscopic.rounded
cobbles..not sharp,or broken..know what I mean?..then on the outside are
"molten" looking.they get odder,there is what appear's to be a crust?..along
with tiny regmaglypt's..lipover's..blob's of molten sand?..very interesting
under the microscope!..beat's me..rocket part's from an exploded
rocket?..all I know is, they do appear to have come through the atmosphere
at a high rate of speed.
Kevin W. Decker. P.S..I just received a tektite from Thailand
that look's just like the largest one's outline..and just about the same
size..person called it a spatula tektite.
Received on Tue 25 Apr 2006 11:44:32 PM PDT