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Northwest Africa 12676
Basic information Name: Northwest Africa 12676
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12676
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 12 kg
Classification
  history:
Recommended:  H5-melt breccia    [explanation]

This is 1 of 20 approved meteorites classified as H5-melt breccia.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 27 Jun 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12676 (NWA 12676)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (H5, melt breccia)

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

Physical characteristics: Three dark brownish fragments without fusion crust.

Petrography: The meteorite is a melt breccia composed of H5 chondritic regions (plagioclase grain size about 20 μm) and abundant up to 1 cm wide recrystallized melt rock veins and pockets with characteristic FeNi metal and sufide spherules. Some spheres are up to 6 mm in apparent diameter.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Niger
Date:P 2019
Mass (g):12000
Pieces:3
Class:H5-melt breccia
Shock stage:S3
Weathering grade:W1
Fayalite (mol%):17.7±0.2 (n=12)
Ferrosilite (mol%):15.5±0.2 (n=12)
Wollastonite (mol%):1.7±0.1 (n=12)
Classifier:A. Greshake, MNB
Type spec mass (g):36.7
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, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Piotr gural100   
Woreczko Jan & Wadi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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