[meteorite-list] Shergotty History

From: M come Meteorite Meteorites <mcomemeteorite2004_at_meteoritecentral.com>
Date: Sat Nov 5 05:56:06 2005
Message-ID: <20051105105603.4519.qmail_at_web26207.mail.ukl.yahoo.com>

Hello

thanks for the help....on Nakhla you have informations
on the fall? In the work of Kicinga I not have find
many...
Matteo

--- bernd.pauli_at_paulinet.de ha scritto:

> Hello Matteo and List,
>
> "where is possible find a complete Shergotty history
> of
> the fall? In the web I have find to much few
> material."
>
> This will be difficult because information about the
> fall and
> find circumstances is rather scanty. Here is what I
> can offer:
>
> (Translation German => English, B. Pauli):
>
> The Shergotty and Gopalpur Meteorites (excerpt)
>
> By G. Tschermak, Member of his Majesty's Academy of
> Sciences
>
> (with 4 tables and 2 woodcuts)
>
> (Presented at the meeting of 22 February 1872.)
>
> In 1867, the k.k. Mineralogical Museum acquired some
> fragments of the aforesaid
> meteoric stones through the kindness of Dr. T.
> Oldham in Calcutta. Later the Indian
> Museum in Calcutta kindly sent three photographic
> pictures of the second meteorite
> in its original state and a plaster cast as well. I
> am very pleased to extend my
> appreciative thanks to the honorable senders now
> that the mineralogical examination
> has been successfully carried through with rewarding
> results.
>
> Shergotty
>
> This meteoric stone fell on 25th August 1865 at 9
> o'clock a.m. near Shergotty close to
> Behar in Eastern India. It has been reported that
> the weather was calm and the sky
> cloudy when a loud sonic boom was heard and then a
> stone fell and buried itself knee-
> deep in the ground. When the stone was recovered
> [from the impact hole], it was broken
> in two pieces.
>
> There is no information on the accompanying
> circumstances. The fragment in the Vienna
> Museum is a somewhat roundish, rather angular edge
> of the stone and thus displays a
> fusion crust on three sides, the remaining parts
> showing a grainy texture. The crust is
> pitch-black and glossy, resembling the crusts of the
> meteorites Stannern, Juvinas, Jonzac.
>
> The melt droplets are prominent in many places and
> partly seem to be arranged parallel to
> each other. In some places the substance of the
> crust has penetrated the interior a little.
> The appearance of the crust makes it likely that the
> stone belongs to the group designated
> as eucrite(s) by G. Rose. This group, as is widely
> known, comprises only a few members.
>
> The broken surface is distinctly grainy, the grains
> being almost of equal size, the broken planes
> displaying a yellow-gray color. The coherence is
> minor. The stone easily crumbles. Melting the
> stone results in a black, glossy glass.
>
> Cheers,
>
> Bernd
>
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Received on Sat 05 Nov 2005 05:56:03 AM PST