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Northwest Africa 974 | |||||||||||||||||
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Basic information | Name: Northwest Africa 974 This is an OFFICIAL meteorite name. Abbreviation: NWA 974 Observed fall: No Year found: 2001 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||
Classification history: |
This is 1 of 8 approved meteorites classified as E6. [show all] Search for other: Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||
Comments: | Revised 8 May 2008: CHanged from EH6 to E6 pending further work | ||||||||||||||||
Writeup![]() |
Writeup from MB 86:
Northwest Africa 974 Remlia, Morocco Found 2001 April Enstatite chondrite (E6) A single stone was found by villagers within 25 km of Remlia, Morocco, and was sold to a meteorite dealer in 2001 April. The original mass was 2250 g, but most of the rusty crust fell off and, therefore, only 1784 g are preseved. Classification and mineralogy (A. Jambon, UPVI): no visible chondrules and no evidence for melting; consists of anhedral enstatite (En>99) and kamacite (Fe93Ni6Si1); minor phases include, plagioclase (Ab82), oldhamite, daubreelite, alabandite, schreibersite, troilite, graphite and silica. Sulfides are oxidized to various degrees. Shock stage, S4. Based on the abundance of kamacite, classification as EH is suggested; yet, compositions of phases are not typical for EH chondrites and are possibly related to the high petrologic grade. Specimens: type specimen, 25 g, UPVI; main mass, Fectay. | ||||||||||||||||
Data from: MB86 Table 6 Line 80: |
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Institutions and collections |
UPVI: Université Pierre et Marie Curie (Paris VI),Case 110, 4 Place Jussieu, 75005 Paris, France (institutional address; updated 5 Oct 2014) Fectay: Bruno Fectay and Carine Bidaut, La Memoire de la Terre SARL, 39800 Aumont, France; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 86, MAPS 37, A157-A184 (2002)
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Photos: |
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Geography: |
Statistics: This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |