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Northwest Africa 12665
Basic information Name: Northwest Africa 12665
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12665
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 348 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 Jun 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12665 (NWA 12665)

(Northwest Africa)

Purchased: 2018

Classification: Ordinary chondrite (H5, melt breccia)

History: The meteorite was purchased from a Morrocan dealer at the mineral show in Hamburg, Germany.

Physical characteristics: Seven black fragments partly covered with fusion crust.

Petrography: The meteorite displays an almost black interior and consists of abundant and partly recrystallized melt rock regions with characteristic FeNi metal and sufide spherules. Unmelted chondritic regions are type H5 (plagioclase grain size about 30 μm) and contain few relict chondrules; no metal or sulfide veins are observed.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Hamburg, Germany
Date:P 2018
Mass (g):348
Pieces:7
Class:H5-melt breccia
Shock stage:S3
Weathering grade:W1
Fayalite (mol%):17.4±0.2 (n=12)
Ferrosilite (mol%):15.6±0.4 (n=13)
Wollastonite (mol%):1.7±0.1 (n=13)
Classifier:A. Greshake, MNB
Type spec mass (g):22.6
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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