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Northwest Africa 13848
Basic information Name: Northwest Africa 13848
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13848
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 984 g
Classification
  history:
Recommended:  R3-6    [explanation]

This is 1 of 30 approved meteorites classified as R3-6.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 8 Apr 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13848 (NWA 13848)

(Northwest Africa)

Purchased: 2021 Jan

Classification: Rumuruti chondrite (R3-6)

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

Physical characteristics: Five dark brownish fragments partly covered by fusion crust.

Petrography: The meteorite displays a dark brownish to orange interior and is composed of up to 4 mm sized angular to subrounded type 6 and impact melt clasts in type 3 matrix. Olivine and low-Ca pyroxene are compositionally unequilibrated in the matrix. Fe-rich olivine is the most dominant mineral phase in the clasts. Chondrules have an average diameter of about 400 μm. More minor phases include low-Ca pyroxene, Ca-pyroxene, sodic plagioclase, sulfides, and Ti-bearing chromite; no metal has been detected.

Geochemistry: type 3 lithology: olivine: Fa17.7±15.7 (Fa0.6-46.2, n=10); low-Ca pyroxene: Fs15.8±8.4Wo0.5±0.2 (Fs5.1-29.3Wo0.3-1.1, n=10); Ca-pyroxene: Fs13.8±1.9Wo40.9±4.1 (Fs10.5-17.0Wo30.7-45.0, n=8); type 6 lithology: olivine: Fa37.3±0.1 (FeO/MnO=75±6, n=8); Ca-pyroxene: Fs10.1±0.7Wo45.6±0.5, n=8

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2021 Jan
Mass (g):984.2
Pieces:5
Class:R3-6
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):17.7; 37.3
Ferrosilite (mol%):15.8; 13.8; 10.1
Wollastonite (mol%):0.5; 40.9; 45.6
Classifier:A. Greshake, MNB
Type spec mass (g):21.7
Type spec location:MNB
Main mass:Hanno Strufe and Andreas Grünemeyer
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 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
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dirk Hohmann   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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