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Northwest Africa 10064
Basic information Name: Northwest Africa 10064
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10064
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 766 g
Meteoritical Bulletin:  MB 104  (2015)  LL3
Recommended:  LL3    [explanation]

This is 1 of 371 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 5 Apr 2015
Writeup from MB 104:

Northwest Africa 10064 (NWA 10064)

(Northwest Africa)

Purchased: 2015

Classification: Ordinary chondrite (LL3)

History: Purchased in Morocco, 2015.

Physical characteristics: Six identical appearing pieces with weathered exterior. A saw cut reveals many densely packed chondrules of variable size.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous unequilibrated chondrules, apparent mean diameter 670±300 μm (n=38), many with porphyritic, igneously zoned olivines and pyroxenes, containing mesostasis or glass. Opaque, fine-grained matrix is present throughout. A lithologically distinct domain or clast (~1-cm) was dominated by fine-grained matrix with low microprobe totals, consistent with the presence of phyllosilicates; no chondrules were observed in this lithology.

Geochemistry: (C. Agee and N. Muttik, UNM) Chondrule olivine Fa22.4±10.5, Fe/Mn=90±71, Cr2O3=0.08±0.08 wt%, n=12, chondrule low-Ca pyroxene Fs12.9±5.0Wo1.3±1.5, Fe/Mn=27±6, n=8.

Classification: Ordinary chondrite LL3, estimated type 3.2-3.4 based on mean values and 1-sigma of Fa and Cr2O3-content of ferroan olivines.

Specimens: 20.5 g including a probe mount on deposit at UNM, Steve Arnold holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):766
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):22.4±10.5
Ferrosilite (mol%):12.9±5.0
Wollastonite (mol%):1.3±1.5
Classifier:C. Agee, UNM
Type spec mass (g):20.5
Type spec location:UNM
Main mass:Steve Arnold
Comments:Fieldname SA-5; submitted by C. Agee
   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 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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