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Northwest Africa 11565
Basic information Name: Northwest Africa 11565
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11565
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 400 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 16 Jan 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11565 (NWA 11565)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CK6)

Petrography: The stone is very recrystallized with a groundmass coarseness of 50-100 µm, typical of CK6 chondrites. It is rather weathered; ~80% of the silicates are stained brown. The rock contains ~15 vol.% discernable chondrules. Plagioclase grains are approxcimately 50 µm in size. The plagioclase is heterogeneous (typical of CKs): Ab44.1±19.4Or1.5±1.3An54.4±20.6 (n=9) with an overall range An27.2-85.8. Also present are diopside (Fs9.2±0.6Wo45.9±0.9, n=4) and augite (Fs14.8Wo27.1, n=1). As in some other CK chondrites, there is more Ca pyroxene than low-Ca pyroxene. Olivine (Fa30.1±0.5, n=17) is also in the CK-chondrite range.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Tucson, AZ
Date:P 2017
Mass (g):399.8
Pieces:1
Class:CK6
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):30.1±0.5 (n=17)
Ferrosilite (mol%):2.5 (n=1)
Wollastonite (mol%):0.6 (n=1)
Classifier:A. Rubin, UCLA
Type spec mass (g):20.31
Type spec location:UCLA
Main mass:with owner (Suzanne Morrison)
Comments:Submitted by Alan Rubin
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
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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