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Northwest Africa 14864
Basic information Name: Northwest Africa 14864
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14864
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 111 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14864 (NWA 14864)

(Northwest Africa)

Purchased: 2022 Jan

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Light grayish sand-coloured fragment with some fusion crust.

Petrography: The meteorite is a fragmental breccia composed up to 1 cm basaltic clasts with intersertal texture plus mineral fragments set in a fine-grained clastic matrix. Dominant mineral phases are up to 1 mm sized exsolved pyroxene and calcic plagioclase grains. Minor phases include silica, chromite, and troilite. No metallic iron was detected.

Geochemistry: low-Ca pyroxene: Fs50.8±0.5Wo2.2±0.2 (Fs50.1-51.4Wo1.8-2.5, FeO/MnO=24-27, n=5); augite exsolution lamellae: Fs23.4±0.2Wo41.5±0.4 (Fs22.8-23.7Wo41.0-42.3, FeO/MnO=22-25, n=5); calcic plagioclase: An91.9±0.7 (An90.9-92.8, n=5)

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Talsint, Morocco
Date:P 2022 Jan
Mass (g):111
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):50.8; 23.4
Wollastonite (mol%):2.2; 41.5
Classifier:A. Greshake, MNB
Type spec mass (g):30.3
Type spec location:MNB
Main mass:Noreddine Azelmat
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8420 approved meteorites from (Northwest Africa) (plus 1900 unapproved names)

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