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Northwest Africa 12800
Basic information Name: Northwest Africa 12800
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12800
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 250 g
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 504 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 18 Aug 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12800 (NWA 12800)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CV3)

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

Physical characteristics: Fifteen dark-grayish fragments with some fusion crust.

Petrography: Carbonaceous chondrite composed of chondrules (mean diameter about 0.8 mm; up to 3 mm sized), CAIs, and olivine amoeboids all set into a fine-grained almost black matrix. Type II chondrules are absent.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Guelmim, Morocco
Date:P 2018
Mass (g):250
Pieces:15
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):10.5±12.7 (0.4-44.3, n=18)
Ferrosilite (mol%):1.3±0.1 (1.1-1.5, n=13)
Wollastonite (mol%):0.8±0.1 (0.8-1.0, n=13)
Classifier:A. Greshake, MNB
Type spec mass (g):20.8
Type spec location:MNB
Main mass:Marcin Cimala
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:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6916 approved meteorites from (Northwest Africa) (plus 2027 unapproved names)

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