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| Northwest Africa 12573 | |||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 12573 This is an OFFICIAL meteorite name. Abbreviation: NWA 12573 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass:  181 g | ||||||||||||||||||||||||||
| Classification history: |
This is 1 of 58 approved meteorites classified as Brachinite. [show all] Search for other: Brachinites, Primitive achondrites | ||||||||||||||||||||||||||
| Comments: | Approved 23 Dec 2019 | ||||||||||||||||||||||||||
| Writeup |
Writeup from MB 108:
Northwest Africa 12573 (NWA 12573) (Northwest Africa) Purchased: 2018 Oct Classification: Primitive achondrite (Brachinite) Petrography: The meteorite shows an equilibrated texture with triple junctions. The dominant minerals of the meteorite are olivine (grain size 0.46-1.00 mm) and pyroxene (grain size 0.26-0.53 mm). Accessory minerals include plagioclase (grain size 0.12-0.29 mm), troilite and metal. Geochemistry: Olivine Fa34.4-36.0, FeO/MnO=76.8-110.8, N=19; Pyroxene Fs28.3-29.9Wo3.1-4.3, FeO/MnO=50.2-69.0, N=8; Plagioclase An47.1-49.3 (EPMA). | ||||||||||||||||||||||||||
| Data from: MB108 Table 0 Line 0: |
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| Institutions and collections |
IGCAS: Institute of Geochemistry Chinese Academy of Sciences, Guiyang, China (institutional address; updated 27 Mar 2018) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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| Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) | ||||||||||||||||||||||||||