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Northwest Africa 13653
Basic information Name: Northwest Africa 13653
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13653
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 525 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6022 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 10 Jan 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13653 (NWA 13653)

(Northwest Africa)

Purchased: 2020 Nov

Classification: Ordinary chondrite (H4)

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

Physical characteristics: Dark brownish rock without fusion crust.

Petrography: The meteorite displays a chondritic texture with small, mostly rounded chondrules (mean diameter about 0.3 mm) in a fine-grained dark matrix that contains sulfides and abundant FeNi metal. Olivine is equilibrated; low-Ca-pyroxene is unequilibrated.

Geochemistry: type 4 lithology: olivine: Fa17.7±0.1, n =5; pyroxene: Fs14.0±2.4Wo2.6±1.0 (Fs8.6-15.6Wo1.6-4.2, n=13)

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Nov
Mass (g):525
Pieces:1
Class:H4
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):17.7
Ferrosilite (mol%):14.0
Wollastonite (mol%):2.6
Classifier:A. Greshake, MNB
Type spec mass (g):20
Type spec location:MNB
Main mass:anonymous
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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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