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Northwest Africa 12187
Basic information Name: Northwest Africa 12187
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12187
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 2.01 kg
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 464 approved meteorites classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 27 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12187 (NWA 12187)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CV3)

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

Physical characteristics: Dark brownish individual lacking any fusion crust.

Petrography: Strongly weathered carbonaceous chondrite composed of chondrules (mean diameter about 0.8 mm; up to 2 mm sized), CAIs, and olivine amoeboids all set into a fine-grained dark brownish matrix. Type II chondrules are absent. Nearly all chondrules show reddish staining due to terrestrial alteration.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018
Mass (g):2007
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:strong
Fayalite (mol%):16.6±18.2 (0.5-50.2, n=14)
Ferrosilite (mol%):2.2±0.4 (1.8-3.4, n=12)
Wollastonite (mol%):1.1±0.1 (0.9-1.2, n=12)
Classifier:A. Greshake, MNB
Type spec mass (g):22.4
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments:Morocco; 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 6505 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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