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Northwest Africa 12675
Basic information Name: Northwest Africa 12675
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12675
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 3.6 kg
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  CV3
Recommended:  CV3    [explanation]

This is 1 of 619 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 11 Jun 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12675 (NWA 12675)

(Northwest Africa)

Purchased: 2019

Classification: Carbonaceous chondrite (CV3)

History: The meteorite was purchased from a local meteorite dealer in Assamakka, Niger.

Physical characteristics: Large brownish to greenish individual without fusion crust.

Petrography: Carbonaceous chondrite composed of chondrules (mean diameter about 1 mm; up to 3 mm sized), CAIs (up to 8 mm sized), and olivine amoeboids all set into a fine-grained almost black matrix. Type II chondrules are absent. Many chondrules show reddish staining due to terrestrial weathering and cracks are filled with alteration products.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Assamakka, Niger
Date:P 2019
Mass (g):3600
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):13.2±14.5 (0.3-42.4, n=17)
Ferrosilite (mol%):3.5±0.3 (3.3-4.2, n=14)
Wollastonite (mol%):1.7±1.0 (0.8-3.6, n=14)
Classifier:A. Greshake, MNB
Type spec mass (g):60
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; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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