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Northwest Africa 13709 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13709 This is an OFFICIAL meteorite name. Abbreviation: NWA 13709 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 39 approved meteorites classified as L-melt rock. [show all] Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
Comments: | Approved 20 Mar 2021 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 13709 (NWA 13709) (Northwest Africa) Purchased: September 2020 Classification: Ordinary chondrite (L, melt rock) Physical characteristics: A single dark stone. Cut face reveals a dark homogeneous interior with mm-sized round composite metal-sulfide grains. Petrography: (J. Gattacceca, CEREGE) Igneous rock with granular texture. Main minerals are olivine and pyroxene (~40 µm), and plagioclase (~20 µm). Metal and troilite are present as 50 µm interstitial grains, µm-size blebs within silicates, and composite metal/troilite spheres up to 2 mm in size. Geochemistry: Olivine Fa25.2±1.8, CaO=0.18 wt% (n=3). Low-Ca pyroxene Fs19.5Wo2.6 (n=2). Classification: Ordinary chondrite (L-melt rock). Specimens: Type specimen at CEREGE. Main mass with Kuntz. | ||||||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 29 Oct 2018) Kuntz: Fabien Kuntz, France; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography: |
Statistics: This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names) |