On Offer: 14.77 gram Seymchan meteorite partial slice

Official name: Seymchan

Type: Iron

Country: Russia

Year found: 1967

Description: 14.77g Seymchan Meteorite Partial Slice. This partial slice shows the characteristic Widmanstätten pattern which is indicative of a cooling process that takes millions of years. This very slow cooling and crystallization of two different iron-nickel alloys within the cores of larger asteroids is the only place in the universe these patterns are known to form. These unique Widmanstätten patterns are only found in iron meteorites and the planetary and asteroidal cores where they are formed.

What you get: 14.77g Seymchan meteorite partial slice as shown, membrane storage/shipping box, and signed Certificate of Authenticity.

We offer a 100% no questions asked 30 day return policy.

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Seymchan

Basic information

Name: Seymchan

This is an OFFICIAL meteorite name.

Abbreviation: There is no official abbreviation for this meteorite.

Observed fall: No

Year found: 1967

Country: Russia

Mass: 323.3 kg

Classification

history:

Meteoritical Bulletin:	MB 43	(1968)	Iron
NHM Catalogue:	5th Edition	(2000)	IIE
MetBase:	v. 7.1	(2006)	Iron-ung
Recommended:			Pallasite, PMG

This is 1 of 73 approved meteorites ) (plus 1 unapproved name) classified as Pallasite, PMG.

Search for other: Main group pallasites, Metal-rich meteorites, and Pallasites

Comments:

Reclassified van Niekerk et al. (2007)

Revised 26 May 2009: Revised pallasite classifications

Writeup

Writeup from MB 43:

Warning: the following text was scanned and may contain character recognition errors. Refer to the original to be sure of accuracy.

DISCOVERY OF SEYMCHAN IRON METEORITE, USSR

Name: SEYMCHAN

The place of fall or discovery: The meteorite has been found in a brook-bed flowing into the river of Hekandue, a left tributary of the river of Jasachnaja of the Magadan district, USSR.

Date of fall or discovery: FOUND, June 1967.

Class and type: IRON.

Number of individual specimens: 2.

Total weight: About 351 kg (about 300 kg and 51 kg).

Circumstances of the fall or discovery: The larger specimen has been found by the geologist F. A. Mednikov during a geological survey. The meteorite hardly seen was lying among the stones of the brook-ebd. The smaller specimen was found at a distance of 20 m from the first one by I. H. Markov with a mine detector in october 1967. The main mass was turned to the Academy of Sciences of the USSR.

Source: Report of geologist F. A. Mednikov (Magadan, USSR) in a letter, VIII 15, 1967 and of V. 1. Zvetkov (Moscow, USSR) in a letter X 17, 1967.