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Northwest Africa 14322
Basic information Name: Northwest Africa 14322
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14322
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 373 g
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 400 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 13 Nov 2021
Writeup from MB 110:

Northwest Africa 14322 (NWA 14322)

(Northwest Africa)

Purchased: 2021

Classification: HED achondrite (Eucrite, polymict)

History: The meteorite was purchased from a dealer in Morocco.

Physical characteristics: Grayish rock largely covered with fusion crust.

Petrography: The meteorite is a breccia consisting of up to 2.0 cm sized basaltic, gabbroic, and dark impact melt rock clasts and up to 1.5 mm sized mineral fragments in fine-grained clastic and related matrix. Main mineral phases are exsolved pyroxene, low-Ca pyroxene (about 5 vol%), and calcic plagioclase. Minor phases include silica, chromite, ilmenite, and troilite. No metallic iron was detected. Shock melt veins and pockets are present.

Geochemistry: low-Ca pyroxene host to augite exsolution lamellae: Fs58.4±0.5Wo3.1±0.5 (Fs57.4-58.8Wo2.7-4.1, n=9, FeO/MnO=28-32); augite exsolution lamellae: Fs28.4±0.5Wo40.4±0.6 (Fs28.0-29.7Wo39.3-40.9, n=12, FeO/MnO=25-28); low-Ca pyroxene: Fs22.2±0.2Wo3.0±0.1 (Fs21.8-22.4Wo2.9-3.0, n=10, FeO/MnO=26-30); low-Ca-pyroxene: Fs34.9±0.3Wo2.1±0.1 (Fs34.3-35.3Wo1.9-2.2, n=12, FeO/MnO=29-35); calcic plagioclase: An85.9±4.6 (An79.7-90.4, n=16)

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2021
Mass (g):373
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):58.4; 28.4; 22.2; 34.9
Wollastonite (mol%):3.1; 40.4; 3.0; 2.1
Classifier:A. Greshake, MNB
Type spec mass (g):26
Type spec location:MNB
Main mass:David Göttlich
Comments:Submitted by Ansgar Greshake
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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