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Northwest Africa 11636
Basic information Name: Northwest Africa 11636
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11636
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 152.5 g
Classification
  history:
Recommended:  CK6    [explanation]

This is 1 of 56 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 20 Feb 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11636 (NWA 11636)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CK6)

Physical characteristics: Sixteen small dark brownish individuals partly covered with fusion crust.

Petrography: The meteorite predominantly consists of fine-grained recrystallized matrix mainly composed of Ni-bearing ferrous olivine. Chondrules are only rarely encountered. Minor phases include intermediate plagioclase, low-Ca pyroxene, and troilite. Cr-rich magnetite is abundant; metal is virtually absent.

Geochemistry: Olivine: Fa29.5±0.2, NiO=0.4±0.1, FeO/MnO=100±11, n=12; magnetite Cr2O3 is about 3.8 wt%.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017
Mass (g):152.5
Pieces:16
Class:CK6
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):29.5±0.2 (n=12)
Ferrosilite (mol%):25.3±0.5 (n=3)
Wollastonite (mol%):1.6±0.6 (n=3)
Classifier:A. Greshake, MNB
Type spec mass (g):20
Type spec location:MNB
Main mass:Vincent Gira
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:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6752 approved meteorites from (Northwest Africa) (plus 2052 unapproved names)

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