SPACE GEMS IN NATURAL IRON MATRIX FEATURED IN A COMPLETE SLICE OF A TRANSITIONAL SEYMCHAN METEORITE - photo 1

SPACE GEMS IN NATURAL IRON MATRIX FEATURED IN A COMPLETE SLICE OF A TRANSITIONAL SEYMCHAN METEORITE

Lot 34
23.02.2022 00:00UTC +00:00
Classic
Sold
$ 21 420
AuctioneerCHRISTIE'S
Event locationUnited Kingdom, London
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ID 716419
Lot 34 | SPACE GEMS IN NATURAL IRON MATRIX FEATURED IN A COMPLETE SLICE OF A TRANSITIONAL SEYMCHAN METEORITE
Estimate value
$ 12 000 – 18 000
Pallasites are not only rare, representing about 0.2% of all known meteorites, they are also widely considered the most beautiful extraterrestrial substance known. Like all pallasitic meteorites, Seymchan originated at the mantle/core boundary of an asteroid that blasted apart following a cataclysmic collision with another asteroid. The crystals seen here are the result of small chunks of the stony mantle becoming suspended in the molten metal of the core. Cut and polished, the lustrous metallic matrix features crystals of gleaming olivine ranging in hues from emerald to amber. The prominent metallic latticework referred to as a Widmanstätten pattern is indicative of a slow cooling rate that provided sufficient time — millions of years — for the two primary alloys to form the present crystalline structure. This pattern is diagnostic in the identification of an iron meteorite and different iron meteorites have different patterns.

It was in the 1960s that the first masses of Seymchan were found in a streambed in a part of Siberia made infamous as the remote location of Stalin’s gulags. Identified as meteorites, they were named Seymchan for a nearby town. Unlike most pallasites, the dispersion of olivine crystals in Seymchan is extremely heterogeneous. Some specimens are olivine rich and some are olivine poor; some specimens have no olivine whatsoever. The example now offered exhibits discreet clusters of olivine and its gem-quality counterpart, peridot, in select areas of the specimen. It is referred to as being “transitional”, and it could be suggested that this specimen provides the most beguiling attributes of both iron and stony-iron meteorites.

This is a complete slice of a meteorite with extraterrestrial gems featuring three olivine clusters. A thick band of metal courses through the center, resulting in the aesthetic presentation now seen. The metallic matrix has been etched and a robust medium octahedral crystalline pattern, that is the signature for Seymchan meteorites, is in evidence. The space between the olivine clusters provides a terrific look at the metallic crystalline lattice. Originating from a shattered asteroid, this is a select specimen of a transitional pallasitic meteorite. Modern cutting.

Christie's would like to thank Dr. Alan E. Rubin at the Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles for his assistance in preparing this catalogue.

228 x 207 x 2mm (9 x 8 x 0.1 in.) and 477.9g (1.0 lb)
Category:Pallasite
Address of auction CHRISTIE'S
8 King Street, St. James's
SW1Y 6QT London
United Kingdom
Preview
09.02.2022 – 23.02.2022
Phone +44 (0)20 7839 9060
Email
4FQ.AYGKAGLUQ@FO3G@
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