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Northwest Africa 13074
Basic information Name: Northwest Africa 13074
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13074
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 40 g
Classification
  history:
Recommended:  CK6    [explanation]

This is 1 of 80 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 31 Jan 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13074 (NWA 13074)

(Northwest Africa)

Purchased: 2016

Classification: Carbonaceous chondrite (CK6)

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

Physical characteristics: Brownish to dark greenish rock partly covered with fusion crust.

Petrography: The meteorite displays a dark greenish interior and is largely composed of fine-grained recrystallized matrix dominated by Fe-rich olivine. Chondrules are only rarely encountered. Minor phases include intermediate plagioclase, low-Ca pyroxene, Ca-pyroxene and FeS. Cr-rich magnetite is abundant; metal was not detected.

Geochemistry: olivine: Fa28.9±0.2, FeO/MnO= 92±8, n=14; low-Ca pyroxene: Fs24.7±0.3Wo1.2±0.7, FeO/MnO= 62±5, n=13, Ca-pyroxene: Fs8.7±0.6Wo46.4±0.7, n=5; Cr2O3 in magnetite is about 2.7 wt%.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2016
Mass (g):40
Pieces:1
Class:CK6
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):28.9
Ferrosilite (mol%):24.7; 8.7
Wollastonite (mol%):1.2; 46.4
Classifier:A. Greshake, MNB
Type spec mass (g):9.1
Type spec location:MNB
Main mass:anonymous
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 Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9092 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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