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Northwest Africa 10442
Basic information Name: Northwest Africa 10442
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10442
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 819 g
Meteoritical Bulletin:  MB 104  (2015)  H3
Recommended:  H3    [explanation]

This is 1 of 632 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 14 Dec 2015
Writeup from MB 104:

Northwest Africa 10442 (NWA 10442)

(Northwest Africa)

Purchased: April 2015

Classification: Ordinary chondrite (H3)

History: Purchased by team eegooblago (Brahim Tahiri, Dustin Dickens and Sean Tutorow) while on expedition in Northwest Africa and Western Sahara in April and May 2015.

Physical characteristics: Single stone, weathered exterior. Saw cuts reveal many densely packed chondrules set in a dark brown groundmass.

Petrography: (C. Agee, UNM) Numerous porphyritic chondrules are present in a primarily opaque matrix. FeNi-metal, iron oxide, and troilite observed.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa18.6±2.1, Fe/Mn=37±4, n=12; low-Ca pyroxene Fs17.3±3.0Wo1.7±0.9, Fe/Mn=23±5, n=3; aluminous pyroxene Fs13.6±2.4Wo9.3±7.8, Fe/Mn=32±8, n=3.

Classification: Ordinary chondrite (H3), estimated 3.9 subtype from mean Fa-content and 1-sd.

Specimens: 20.35 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Northwest Africa
Date:P April 2015
Mass (g):818.67
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):18.6±2.1
Ferrosilite (mol%):17.3±3.0
Wollastonite (mol%):1.7±0.9
Classifier:C. Agee, UNM
Type spec mass (g):20.35
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G640; submitted by C. Agee, UNM
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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