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Northwest Africa 14477
Basic information Name: Northwest Africa 14477
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14477
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 36 g
Classification
  history:
Recommended:  R3    [explanation]

This is 1 of 58 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14477 (NWA 14477)

(Northwest Africa)

Purchased: 2021 Aug

Classification: Rumuruti chondrite (R3)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania, in August, 2021.

Physical characteristics: Dark grayish rock almost completely covered with fresh fusion crust.

Petrography: The meteorite displays an unbrecciated fresh dark-grayish interior and is composed of well-defined mostly rounded chondrules (apparent mean diameter about 400 µm) and mineral fragments set in abundant matrix dominated by Fe-rich olivine. Sodic plagioclase occurs as small isolated grains in the matrix. Opaque phases include often aggreated pentlandite and troilite as well as Ti-bearing chromite; metal is absent.

Geochemistry: olivine: Fa25.2±17.5 (Fa1.2-47.3, n=24); low-Ca pyroxene: Fs20.3±8.1Wo1.9±0.7 (Fs9.0-36.2Wo0.6-3.9, n=23); Ca-pyroxene: Fs10.5±3.0Wo28.7±4.8 (Fs7.9-18.8Wo17.9-34.6, n=15)

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021 Aug
Mass (g):36
Pieces:1
Class:R3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):25.2
Ferrosilite (mol%):20.3; 10.5
Wollastonite (mol%):1.9; 28.7
Magnetic suscept.:3.14
Classifier:A. Greshake, MNB
Type spec mass (g):7.2
Type spec location:MNB
Main mass:Salamu Ali
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 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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