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Northwest Africa 6065 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6065 This is an OFFICIAL meteorite name. Abbreviation: NWA 6065 Observed fall: No Year found: 2009 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 138 approved meteorites classified as Achondrite-ung. [show all] Search for other: Achondrites, Ungrouped achondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 31 Jul 2017 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 106:
Northwest Africa 6065 (NWA 6065) (Northwest Africa) Purchased: 2009 Classification: Ungrouped achondrite History: The meteorite was bought in 2009 from a local meteorite dealer in Erfoud, Morocco. Physical characteristics: A single brownish individual without fusion crust was purchased. Petrography: The meteorite shows an equilibrium texture dominantly composed of 200-600 µm sized olivine (77 vol%) and Ca-pyroxene (10 vol%) grains that often share 120° grain boundaries. Minor phases include Cl-rich apatite, chromite, troilite, and FeNi metal which is often altered to iron hydroxides. Neither low-Ca pyroxene nor plagioclase has been found in the two thin sections studied. Geochemistry: olivine: Fs29.4±0.2 (Fs29.2-29.7, n=17, FeO/MnO=57); Ca-pyroxene: Fs9.7±0.7Wo44.5±0.5 (Fs9.3-12.3Wo43.5-44.9, n=18, FeO/MnO=26, Cr2O3 = 0.74wt%, Al2O3 = 0.71wt%); oxygen isotopes (R. Tanaka and D. Rumble, Institute for Study of the Earth’s Interior, OkaU): δ18O=5.558, 5.598; δ17O=2.830, 2.873; Δ17O= -0.095, -0.073 (all per mil). Classification: Achondrite, ungrouped (brachinite-like). Pairing with NWA 5400 seems likely. | ||||||||||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||
Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) OkaU: Institute for Study of the Earth's Interior, Okayama University, Misasa Tottori 682-0193, Japan (institutional address) |
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Catalogs: |
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References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names) |