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Northwest Africa 11773
Basic information Name: Northwest Africa 11773
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11773
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 890 g
Classification
  history:
Recommended:  CK6    [explanation]

This is 1 of 52 approved meteorites classified as CK6.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 11 May 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11773 (NWA 11773)

(Northwest Africa)

Purchased: 2014

Classification: Carbonaceous chondrite (CK6)

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

Physical characteristics: Dark greyish individual without fusion crust.

Petrography: The meteorite displays a greyish to light greenish interior and is composed of abundant recrystallized matrix dominated by of Fe-rich olivine with only few scattered and poorly defined chondrules (mean diameter about 0.7 mm). Cr-rich magnetite is abundant. More minor phases include intermediate plagioclase, Ca-pyroxene, and sulfides. No metal has been detected.

Geochemistry: olivine: Fa33.2±0.2, n=16, FeO/MnO=118±9; Ca-pyroxene: Fs9.7±1.2Wo47.2±3.1, n=12; feldspar: An64.2Ab35.0Or0.8, n=2

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2014
Mass (g):890
Pieces:1
Class:CK6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):33.2±0.2 (n=16)
Classifier:A. Greshake, MNB
Type spec mass (g):20
Type spec location:MNB
Main mass:Stefan Ralew
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6275 approved meteorites from (Northwest Africa) (plus 2026 unapproved names)

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