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Northwest Africa 14382
Basic information Name: Northwest Africa 14382
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14382
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 110 g
Classification
  history:
Recommended:  LL3.15    [explanation]

This is 1 of 14 approved meteorites classified as LL3.15.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14382 (NWA 14382)

(Northwest Africa)

Purchased: 2021 Jun

Classification: Ordinary chondrite (LL3.15)

History: Purchased by Shun-Chung Yang and Juan Chen in June 2021 from a dealer in Tindouf, Algeria.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed, closely-packed, unequilibrated glass-bearing chondrules (apparent diameter 920 ± 430 µm, N = 25) are set in a fine grained matrix containing altered kamacite, troilite and rare schreibersite.

Geochemistry: Olivine (Fa23.5±12.7, range Fa1.2-37.1, N = 7; Cr2O3 in ferroan olivine 0.06-0.40 wt.%, mean 0.21±0.09 wt%, N = 30), low-Ca pyroxene (Fs18.0±11.5Wo1.4±1.5, range Fs6.7-33.3Wo0.3-3.6, N = 4), subcalcic augite (Fs15.1Wo29.5), diopside (Fs3.0Wo41.0). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.45.

Classification: Ordinary chondrite (LL3.15). Subtype based on the mean and standard deviation for Cr2O3 contents in ferroan olivine (Grossman and Brearley, 2005).

Specimens: 25.8 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang and Mr. J. Chen.

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Tindouf
Date:P 2021 Jun
Mass (g):110
Pieces:1
Class:LL3.15
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):23.5±12.7
Ferrosilite (mol%):15.8±10.6
Wollastonite (mol%):0.9±1.1
Magnetic suscept.:3.45
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):25.8
Type spec location:UWB
Main mass:S.-C. Yang and J. Chen
Comments:Work name SCY-35; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
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 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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