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Northwest Africa 11836
Basic information Name: Northwest Africa 11836
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11836
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 70 g
Classification
  history:
Recommended:  CK5    [explanation]

This is 1 of 148 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 4 Jul 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11836 (NWA 11836)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CK5)

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

Physical characteristics: Several greyish to light greenish fragments without fusion crust.

Petrography: The meteorite displays a greyish interior and is predominantly composed of recrystallized olivine-rich matrix with scattered chondrules still being discernable. Cr-rich magnetite is abundant. More minor phases include intermediate plagioclase, low-Ca pyroxene, Ca-pyroxene and troilite; metal was not detected.

Geochemistry: olivine: Fa31.1±0.2, n=15, FeO/MnO=121.5±7.2; low-Ca pyroxene: Fs25.8±0.2Wo1.0±0.2, n=13; Ca-pyroxene: Fs11.3±0.7Wo48.2±0.3, n=6

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018
Mass (g):70
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):31.1
Ferrosilite (mol%):25.8; 11.3
Wollastonite (mol%):1.0; 48.2
Classifier:A. Greshake, MNB
Type spec mass (g):14
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6407 approved meteorites from (Northwest Africa) (plus 2023 unapproved names)

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