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Northwest Africa 13008
Basic information Name: Northwest Africa 13008
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13008
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 68 g
Classification
  history:
Recommended:  R3-4    [explanation]

This is 1 of 7 approved meteorites classified as R3-4.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 23 Dec 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 13008 (NWA 13008)

(Northwest Africa)

Purchased: 2019

Classification: Rumuruti chondrite (R3-4)

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

Physical characteristics: Dark greyish rock partly covered with fusion crust.

Petrography: The meteorite displays a dark greyish interior and is composed of up to 6 mm sized angular type 4 clasts set into type 3 matrix. Olivine and low-Ca pyroxene are compositionally unequilibrated in the matrix; equilibrated Fe-rich olivine is the most dominant mineral phase in the clasts. Low-Ca pyroxene is also compositionally unequilibrated in the matrix. More minor phases include Ca-pyroxene, sodic plagioclase, sulfides, and Ti-bearing chromite; no metal has been detected.

Geochemistry: type 3 lithology: olivine: Fa28.0±13.7 (Fa5.3-39.2, n= 17); pyroxene: Fs14.4±6.5Wo1.6±0.9 (Fs5.4-23.8Wo0.4-3.3, n=10); type 4 lithology: olivine: Fa38.9±0.2, n=1; pyroxene: Fs24.3±4.1Wo0.9±0.5 (Fs16.6-29.6Wo0.4-1.9, n=17)

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2019
Mass (g):68
Pieces:1
Class:R3-4
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):28.0; 38.9
Ferrosilite (mol%):14.4; 24.3
Wollastonite (mol%):1.6; 0.9
Classifier:A. Greshake, MNB
Type spec mass (g):14.0
Type spec location:MNB
Main mass:Howard Lee McLean
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:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7100 approved meteorites from (Northwest Africa) (plus 2005 unapproved names)

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