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Northwest Africa 14392
Basic information Name: Northwest Africa 14392
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14392
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 870 g
Classification
  history:
Recommended:  H4-an    [explanation]

This is 1 of 22 approved meteorites classified as H4-an.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14392 (NWA 14392)

(Northwest Africa)

Purchased: September, 2021

Classification: Ordinary chondrite (H4, anomalous)

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

Physical characteristics: Brownish rock without fusion crust.

Petrography: The meteorite shows a chondritic texture with well-defined, partly flattened, and partly packed chondrules (average apparent diameter 304±278 µm, n=26) set in a light brownish matrix with metal and sulfides. Olivine is compositionally equilibrated, low Ca-pyroxene unequilibrated.

Geochemistry: olivine: Fa13.4±0.2 (Fa13.2-13.8, n=10); low-Ca pyroxene: Fs12.6±1.8Wo0.9±0.5 (Fs8.4-15.2Wo0.2-1.6, n=16)

Classification: Ordinary chondrite (H4-anomalous). The anomalous designation is based on the low Fa content of olivine. Out of 5775 equilibrated H chondrites classified using EDS/WDS techniques, only 4 (less than 1 ‰) have a lower Fa content in olivine (Chug Chug 019 H4-an with Fa10.2, SaU 164 H6 Fa10.2, NWA 1608 H4-6 Fa11.8, and NWA 455 H4 Fa12.5).

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Guelmim, Morocco
Date:P September, 2021
Mass (g):870
Pieces:1
Class:H4-an
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):13.4
Ferrosilite (mol%):12.6
Wollastonite (mol%):0.9
Magnetic suscept.:5.33
Classifier:A. Greshake, MNB
Type spec mass (g):20.8
Type spec location:MNB
Main mass:Boulaouane Taleb Ahmed
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum f├╝r Naturkunde, Invalidenstra├če 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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