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Northwest Africa 6826
Basic information Name: Northwest Africa 6826
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6826
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 1309 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  CK5
Recommended:  CK5    [explanation]

This is 1 of 181 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 20 Oct 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 6826 (NWA 6826)

(Northwest Africa)

Purchased: 2009

Classification: Carbonaceous chondrite (CK5)

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

Physical characteristics: Greyish rock partly covered with fusion crust.

Petrography: The meteorite displays a greyish to slightly greenish interior and is predominantly composed of fine-grained recrystallized matrix mainly consisting of ferrous olivine. Some dispersed chondrules (mean diameter about 0.6 mm) are present. Minor phases include plagioclase, Ca-pyroxene, and troilite. Cr-rich magnetite is abundant; metal is virtually absent.

Geochemistry: olivine: Fa32.5±0.3, n=16, FeO/MnO=117±13; low-Ca pyroxene: Fs9.6±0.5Wo46.9±0.5, n=10

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2009
Mass (g):1309
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:low
Fayalite (mol%):32.5
Ferrosilite (mol%):9.6
Wollastonite (mol%):46.9
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; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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