[meteorite-list] Gold and diamonds in meteorites

From: bernd.pauli_at_paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: Sun May 2 14:59:24 2004
Message-ID: <DIIE.0000002B00002112_at_paulinet.de>

Hello Jos? and List,

> Can someone please confirm if gold
> has ever been found on a meteorite?

Well, some meteorites do indeed contain minute
amounts of gold. Here are some examples:

Bayard, L6, 0.180 ppm Au (parts per million / Au = aurum = gold)
Melrose (a), L5, 0.30 oz. (ca. 8.5 g) and 0.32 oz. Au per ton
Orgueil, CI, 0.145 ppm Au

Bencubbin, CB3a, contains diamonds
Chuckwalla, IAB, Au = 1.468 ?g/g - Chuckwalla also contains preterrestrial,
impact-produced diamonds with sphalerite some diamonds are even visible
macroscopically (!)
Allende contains interstellar/presolar (nano-)diamonds*
Abee => diamonds of solar nebula origin (not of shock-produced origin!),
Acfer 182 contains diamonds

Numerous ureilites contain diamonds

*Presolar diamonds have also been found in Orgueil, Semarkona, Bishunpur,
Ragland, Mezo Madaras, ALHA77214, Tieschitz, Dimmitt, Qingzhen, Indarch,
Leoville, Vigarano, Kainsaz, Axtell, RC 075, Efremovka, Boriskino, Kaidun, etc.

> Have a nice Sunday

Thanks, we had a nice, sunny Sunday here in Southern Germany with tasty
asparagus for dinner and garden work afterwards to compensate for the asparagus :-)


Best wishes,

Bernd

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Received on Sun 02 May 2004 02:59:22 PM PDT