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Northwest Africa 10903
Basic information Name: Northwest Africa 10903
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10903
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 113.2 g
Meteoritical Bulletin:  MB 105  (2016)  CV3
Recommended:  CV3    [explanation]

This is 1 of 589 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 21 Nov 2016
Writeup from MB 105:

Northwest Africa 10903 (NWA 10903)

(Northwest Africa)

Purchased: 2015

Classification: Carbonaceous chondrite (CV3)

History: Purchased in 2015 by Brahim Tahiri in Morocco and sent to his partner Sean Tutorow for analysis.

Physical characteristics: 208 identically appearing stones and fragments: sandblasted exterior, many mm-sized chondrules visible, CAIs are present, matrix dark gray.

Petrography: (C. Agee, UNM) Numerous porphyritic chondrules observed, and fine-grained matrix makes up approximately 50% of this meteorite.

Geochemistry: (C. Agee and M. Spilde, UNM) All olivine Fa4.7±5.4, Fe/Mn=75±41, n=16; ferroan olivine Fa8.8±5.4, Fe/Mn=99±32, Cr2O3=0.25±0.32 (wt%), n=7; aluminous low-Ca pyroxene Fs22.2±26.2Wo2.4±2.1, Al2O3=6.7±1.6 (wt%), n=2; aluminous diopside Fs0.8±0.5Wo43.3±1.2, Al2O3=7.3±3.4 (wt%), n=3; plagioclase An86.5±0.5Ab13.4±0.6, n=2.

Classification: Carbonaceous chondrite (CV3)

Specimens: 20.16 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):113.21
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):4.7±5.4
Ferrosilite (mol%):22.2±26.2
Wollastonite (mol%):2.4±2.1
Classifier:C. Agee, UNM
Type spec mass (g):20.16
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G678; 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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