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Northwest Africa 12226 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12226 This is an OFFICIAL meteorite name. Abbreviation: NWA 12226 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass: 38 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 595 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 13 Nov 2018 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 12226 (NWA 12226) (Northwest Africa) Purchased: 2007 Dec Classification: HED achondrite (Eucrite) History: Purchased from a Moroccan dealer at the mineral show (CCH) in Hamburg, Germany Petrography: (K. Metzler, IfP) Unbrecciated ophitic basalt with exsolved pyroxene. Accessories are ilmenite, chromium spinel, silica polymorph, Ni-free iron metal, and troilite. Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene (n=15): Fs58.3±1.2Wo6.7±1.2 (Fs55.5-59.5Wo5.7-9.1); mean Fe/Mn (at.): 32. Exsolved Ca-rich pyroxene lamellae (n=9): Fs35.3±2.6Wo34.4±3.3 (Fs32.3-39.0Wo29.4-38.5); mean Fe/Mn (at.): 34. Plagioclase (n=5): An88.4±1.8 (An86.4-90.5). | ||||||||||||||||||||||||||||
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 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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