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Northwest Africa 12743
Basic information Name: Northwest Africa 12743
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12743
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 55 g
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 Jul 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12743 (NWA 12743)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (H5, melt breccia)

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

Physical characteristics: Dark brownish rock with some fusion crust.

Petrography: The meteorite is a melt rock composed of abundant and partly recrystallized melt rock regions with characteristic FeNi metal and sufide spherules. Few chondritic regions of type H5 (plagioclase grain size about 40 μm) with relictic chondrules and mineral fragments are present; no metal or sulfide veins are observed.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2019
Mass (g):55
Pieces:1
Class:H5-melt breccia
Shock stage:S4
Weathering grade:W2
Fayalite (mol%):19.0±0.3 (n=13)
Ferrosilite (mol%):16.8±0.2 (n=13)
Wollastonite (mol%):1.4±0.1 (n=13)
Classifier:A. Greshake, MNB
Type spec mass (g):16.6
Type spec location:MNB
Main mass:Hanno Strufe
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:
Geography: 
Coordinates:Unknown.

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

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