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| Northwest Africa 6145 | |||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 6145 This is an OFFICIAL meteorite name. Abbreviation: NWA 6145 Observed fall: No Year found: 2009 Country: (Northwest Africa) Mass:  310 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 37 approved meteorites classified as R5. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7) | ||||||||||||||||||||||||
| Comments: | Approved 27 Jul 2019 | ||||||||||||||||||||||||
| Writeup |
Writeup from MB 108:
Northwest Africa 6145 (NWA 6145) (Northwest Africa) Purchased: 2009 Nov Classification: Rumuruti chondrite (R5) History: Purchased from a Moroccan mineral dealer at the mineral show in Munich, Germany Petrography: (K. Metzler, IfP) Equilibrated chondrite, consisting of chondrules and chondrule fragments set in a recrystallized matrix. Some shock veins are present. Chondrule sizes mostly between 300 and 500 µm, up to 1.5 mm. Geochemistry: Mineral compositions and geochemistry: Mean olivine composition Fa39.0±0.3 (38.4-39.4); n=20. Mean low-Ca pyroxene composition Fs30.5±0.3 Wo1.2±0.1 (Fs30.1-30.9 Wo1.0-1.4); n=5. Mean Ca-pyroxene composition Fs11.6±0.3 Wo44.6±0.2 (Fs11.2-12.1 Wo44.2-44.9); n=10. Accessories are chromite, troilite and pentlandite; no metal was found. Classification: R chondrite based on mineral chemistry. Petrologic type 5, based on equilibrated olivine and pyroxene and well-preserved chondrules. | ||||||||||||||||||||||||
| Data from: MB108 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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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| Photos: |
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| Geography: |
Statistics: This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names) | ||||||||||||||||||||||||