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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 24 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 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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Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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