Meteorite Crater
of Haviland Kansastm
37o 34’ 58” N. Latitude
99o 09’ 50” W. Longitude
2147 ft (654m) Altitude


Small pond, hot
summer +1500
lb find on Ross Farm
General Information: The Brenham meteorite was found in 1885
by Eliza Kimberly and ca. 2000 years ago by Hopewell Native Americans. The
Brenham meteorite is believed to be approximately 4.6 billion years old from
the core-mantel boundary 55 miles deep in an asteroid 250 miles in
diameter, which cooled from a molten state at 3o per million
years. A collision 156 million years ago dislodged a 20 foot
diameter, 500 ton meteoroid which fell to Earth 20,000 years ago during the
maximum of the last ice age. The fall created a 6 mile long, 1 mile
wide strewn field and the 55' x 36' wide, 10' deep Haviland Crater excavated by
H.H. Nininger in 1933. Total weight ca. 7-8 tons.
Meteorites are exotic materials
from outer space and not stable in the Earth's atmosphere. Special care
and attention is needed to preserve your specimen. Stability can be a
problem with cut Brenham pallasite samples showing the classic metal-stone
composition. Some Brenham meteorites are more or less stable than
others.
Prevent exposure to humid
environments or vapors from cleaning products that contain chlorine bleach.
Handling a freshly cut meteorite surface with bare skin will
expose it to rust promoting perspiration (salts, organic acids, water),
don't do this!
If your Brenham specimen is
not showing signs of corrosion-don’t do anything-“if it ain’t broke don’t fix
it". If superficial rust appears, don’t panic but do not neglect. Buffing
with a cloth wheel and jewelers rouge (e.g. E5, check local hardware store)
will remove the corrosion. If left to rust, a stronger abrasive will be
needed to remove the corrosion. In extreme cases, the surface can
"erupt" due to expansion of the red iron oxide (Fe2O3)
causing severe and non-repairable damage.
I do not recommend coating or sealing, in my hands it seems to
promote corrosion. If you coat with anything, a very light layer of mineral oil
or paste wax (no water) will do, something that is easy to remove or is
compatible with the buffing process. If you have collectable swords, knifes,
guns, shinning armor, , the maintenance is very similar. If a dark tarnish
appears and it is not too aesthetically repugnant, leave it alone, it is the
self limiting good rust, Fe3O4. It can be removed by buffing if desired.
Keep in mind that there will come a day in the Universe when
mankind and all our collectables will cease to exist in the present
condition-permanence in the physical world is an illusion of the human mind as
it operates on a relatively short time scale (pretty profound huh?).
My name is Don Stimpson, I live in
The Big Well in
(detector generously donated by the family of David C. Bibens). Note: items from the Big Well are on display
at the
In the News: http://www.myfoxkc.com/myfox/pages/News/Detail?contentId=1394082&version=2&locale=EN-US&layoutCode=TSTY&pageId=3.2.1
Contact: distimpson@giantcomm.net
How meteorites turned my hands purple!
How do
you know it is a meteorite?
In Search of: "The Tiger Woods of Physics"
The Meteoright
Stuff tm
The Meteorite Stuff tm
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D.I. Stimpson, all rights
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