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Northwest Africa 11753 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11753 This is an OFFICIAL meteorite name. Abbreviation: NWA 11753 Observed fall: No Year found: 2017 Country: Morocco Mass: 159 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 409 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 26 May 2018 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11753 (NWA 11753) Morocco Purchased: 2017 Jul Classification: HED achondrite (Eucrite, polymict) Petrography: (K. Metzler, IfP) Fine-grained polymict breccia consisting of mm-sized basalt clasts (subophitic and granulitic textures) and mineral fragments set in a fine-grained clastic matrix made of related debris. Breccia-in breccia textures occur. Most pyroxenes exhibit augite exsolution lamellae. Fragments of diogenitic low-Ca pyroxene are admixed (<10 vol%). Accessories are silica polymorph, ilmenite, chromite, troilite, and Cr-Al-spinel. Geochemistry: Mineral compositions and geochemistry: Eucritic low-Ca pyroxene (host; n=9): Fs47.8±5.8 (39-58); Wo2.1±0.6 (1-3); mean Fe/Mn (at.): 33. Eucritic Ca-pyroxene (exsolution lamellae; n=3) Fs20.2±4.2 (18-25); Wo42.2±1.9 (40-44). Diogenitic pyroxene (n=4): Fs29.5±1.9Wo3.7±0.5 (Fs28-31Wo3-4); mean Fe/Mn (at.): 36.Plagioclase (n=10): An90.6±2.6 (85-94). | ||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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