|
Northwest Africa 5147 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 5147 This is an OFFICIAL meteorite name. Abbreviation: NWA 5147 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass: 968 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 459 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
Comments: | Approved 4 Jul 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 5147 (NWA 5147) (Northwest Africa) Purchased: 2007 Classification: HED achondrite (Howardite) History: Purchased by Terry Boswell in 2007 from a Moroccan dealer. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU; T. Bunch and J. Wittke, NAU) Breccia composed of sparse lithic diogenite and eucrite clasts plus related angular mineral fragments in a finer grained matrix. The proportion of diogenitic material is 30-40 vol.%. Minerals include diogenitic orthopyroxene, exsolved pigeonite, unexsolved pigeonite, calcic plagioclase, ferropigeonite, silica polymorph, fayalite, chromite, troilite, ilmenite and Ni-free metal. Lithic eucrite clasts have intersertal, diabasic and microgabbroic textures. Geochemistry: Diogenitic orthopyroxene (Fs23.6-32.1Wo1.9-3.6, FeO/MnO = 25-31, N = 5), pigeonite (Fs39.3-50.5Wo11.3-21.8, FeO/MnO = 23-31, N = 6), orthopyroxene host (Fs54.8-60.1Wo1.5-4.1, FeO/MnO = 29-31, N = 8), clinopyroxene exsolution lamellae (Fs24.6-24.9Wo42.0-43.8, FeO/MnO = 29-30, N = 2), ferroan orthopyroxene (Fs37.5Wo2.1, FeO/MnO = 30), ferropigeonite (Fs76.3Wo17.5, FeO/MnO = 33), fayalite (Fa75.8, FeO/MnO = 39), plagioclase (An87.7-94.4Or0.4-0.1, N = 8). Classification: Howardite. Specimens: 20.9 g including one polished thin section at PSF; remainder with Mr. T. Boswell. | ||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
Institutions and collections |
NAU: Geology, Bldg 12
Knoles Dr
Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
|