🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: alt.sci.planetary
Article #88

Re: Meteorite Collecting and Study

#88
From: K3032E0
Date: Tue, 12 Jan 1993 10:04
37 lines
2506 bytes
In my opinion, the best way is to go to a museum (or private collector) with
a meteorite collection of at least a dozen differnet speciems: Old, weather-
ed fragments and fresh (fusion crust|) Individuals of Stony-, Stony-Iron and
Iron-Meteorites. Take also a close look at slices or cut speciems to learn
how these space rocks look inside.
Then go out and keep your eyes open. If you have discovered a possible
meteorite, check for fusion crust, and estimate (or, even better, measure)
it's density (But don't put it into water|||): Meteorites tend to be heavier
than terrest.rocks. You may cut off a small piece.(but be careful the that the
possible meteorite dosn't get too hot|) It should be easy to identify iron-
or stony-iron meteorites by then. In case of stones, check for metal grains
or chondrules. ALL (Stony-)Meteorites have much more iron than earth-rocks:
Somwhere between 15% and 20% (except Lunar- and SNC-Meteorites).
Check also weather a small magnet is attracted by the possible meteorite.

Then, if you think it may be a stone from outer space, bring it to a museum
or university for a careful analysis.

By the way: That sound greart, but don't expect to find a meteorite on your
next field trip. Here in Germany, Austria and Czech we have a camera-network
to photograph bright meteors at night. (Just like the one that was operating
in USA and Canada sometimes in the 1960s or so). You can calculate the impact-
site to a few km^2 from these photographs, but of dozens (possibly hundrets)

Pribram and Lost City). Last year possibly some 100kg of carb.Chondrite
dropped into a forest near Prague, but not a single fragment has been found.
You see, your chance to find a meteorite simply by chance is very remote|

I know, you WILL ask if I ever found a meteorite: Sorry, no...|
(You see, just words...)

For your educational side, try these two books (hope I remember them right):
* McSween: "Meteorites and their parent bodies"
* Wasson:  "Meteorites and their record of the early solar system"

Hope you have lots of fun with these space-rocks|
  Herbert
Technical Details
Message-ID: <93012.110402K3032E0@ALIJKU11.BITNET>
Path: arc1-ca.pugleaf.net!sparky!uunet!news.univie.ac.at!alijku11!k3032e0
References: <93011174@sloth.bc.ca>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!news.univie.ac.at!alijku11!k3032e0
Organization: Johannes Kepler University Linz - Computing Center
Date: Tue, 12 Jan 1993 11:04:02 CET
From: <K3032E0@ALIJKU11.BITNET>
Message-ID: <93012.110402K3032E0@ALIJKU11.BITNET>
Newsgroups: alt.sci.planetary
Subject: Re: Meteorite Collecting and Study
Distribution: world
References:  <93011174@sloth.bc.ca>
Lines: 37