THE WINNING BID WILL GET 130 GRAMS OF NWA 13221 L4 CHONDRITE METEORITE AS SHOWN IN PHOTOS IN A LABELLED DISPLAY BOX COMBINED WITH CERTIFICATE OF AUTHENTICITY.
ON OFFER METEORITE OF 65.2 GRAMS
This meteorite is officially classified & approved as NWA 13221 L4.
Discovered in September 2019 in Algeria.
Officially classified by world renowned and profoundly respected Dr Anthony J. Irving and team at University of Washington.
DISCOVERED IN SEPTEMBER 2019
TOTAL : 65.2 GRAMS
The authenticity of this meteorite has a 100% guarantee comes with signed certificate of authenticity.
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This Item will not include any reference and will be posted as a "Gift" for Customs purposes
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FRESH FUSION CRUST WITH VELVETY TEXTURE AND TONS OF CONTRACTION CRACKS
OFFICIAL CLASSIFICATION DATA SOURCE:
THE METEORITICAL SOCIETY
INTERNATIONAL SOCIETY FOR METEORITICS AND PLANETARY SCIENCE
LUNAR AND PLANETARY INSTITUTE
METEORITICAL BULLETIN DATABASE
MetSoc Home Publications Contacts
Northwest Africa 13221
Basic information Name: Northwest Africa 13221
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13221
Observed fall: No
Year found: 2019
Mass:help 1097 g
Recommended: L4 [explanation]
This is 1 of 1648 approved meteorites (plus 4 unapproved names) classified as L4. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Feb 2020
Writeup from MB 109:
Northwest Africa 13221 (NWA 13221)
Purchased: 2019 Sep
Classification: Ordinary chondrite (L4)
History: Purchased by Mbark Arjdal in September 2019 from an Algerian dealer.
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed chondrules are set in a recrystallized matrix containing merrillite, chlorapatite, taenite, chromite, troilite, stained kamacite and pentlandite.
Geochemistry: Olivine (Fa24.9±0.1, range Fa24.8-25.1, N = 6), low-Ca pyroxene (Fs20.3±0.3Wo2.2±0.7, range Fs19.8-20.5Wo1.7-3.7, N = 6), augite (Fs8.8±0.9Wo43.5±1.5, range Fs7.8-9.6Wo45.1-42.2, N = 3).
Classification: Ordinary chondrite (L4).
Specimens: 66.9 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.
Place of purchase: Algeria
Date: P 2019 Sep
Mass (g): 1097
Shock stage: S2
Weathering grade: W0/1
Fayalite (mol%): 24.9±0.1
Ferrosilite (mol%): 20.3±0.3
Wollastonite (mol%): 2.2±0.7
Classifier: A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g): 66.9
Type spec location: UWB
Main mass: M. Arjdal
Comments: Work name Arj ZM 136; submitted by A. Irving
and collections UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS: NASA ADS
Find references in Google Scholar: Google Scholar
This is 1 of 42 approved meteorites from Mali (plus 1 unapproved name)
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- Main Mineral/ Name Meteorite
- NWA 13221 L4 CHONDRITE METEORITE
- Mineral Form/ Type Meteorite
- Chondrite Meteorite
- 65.2 g
- Origin (Country)