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Northwest Africa 12754
Basic information Name: Northwest Africa 12754
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12754
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 33.5 g
Classification
  history:
Recommended:  CM2    [explanation]

This is 1 of 529 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 18 Aug 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12754 (NWA 12754)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CM2)

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

Physical characteristics: Brownish rock with some fusion crust.

Petrography: The meteorite displays a dark brownish interior and is a brecciated carbonaceous chondrite composed of chondrules (mean diameter about 300 μm), chondrule pseudomorphs, CAIs, and mineral fragments set into abundant Fe-rich matrix. Many of the components are heavily corroded and often surrounded by fine-grained dust rims. The meteorite matrix consists of carbonates, few sulfides and fibrous phyllosilicates.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017
Mass (g):33.48
Pieces:1
Class:CM2
Shock stage:S1
Weathering grade:moderate
Fayalite (mol%):17.8±18.5 (0.4-58.8, n=15)
Ferrosilite (mol%):1.4±0.4 (0.9-2.1, n=13)
Wollastonite (mol%):0.9±0.2 (0.7-1.5, n=13)
Classifier:A. Greshake, MNB
Type spec mass (g):7
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. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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