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Northwest Africa 7606
Basic information Name: Northwest Africa 7606
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7606
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 159 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL3.4
Recommended:  LL3.4    [explanation]

This is 1 of 24 approved meteorites classified as LL3.4.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 28 Jan 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7606 (NWA 7606)

Morocco

Purchased: Aug 2012

Classification: Ordinary chondrite (LL3.4)

History: Purchased by Adam Bates from a meteorite dealer in Morocco, August 2012.

Physical characteristics: Single stone, dark weathered fusion crust, saw-cut reveals densely packed chondrules of variable size, scattered very fine grained metal/sulfides.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a numerous unequilibrated chondrules, most 500-1000 μm, range ~100-3000 μm, set in fine-grained groundmass, minor kamacite, troilite, and Fe-oxide.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa19.1±10.6, range Fa0.4-37.1, Fe/Mn=62±40, Cr2O3=0.06±0.04 wt%, n=32; low-Ca pyroxene Fs7.1±6.5Wo0.8±0.9, range Fs0.3-27.1, Fe/Mn=20±15, n=56.

Classification: Ordinary chondrite (LL3.4), mean Fa-content and sigma consistent with type 3.4, low-Ca pyroxene has anomalously low mean Fs-content and high sigma for type 3.4, weathering grade W2.

Specimens: 22 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P Aug 2012
Mass (g):159
Pieces:1
Class:LL3.4
Weathering grade:W2
Fayalite (mol%):19.1±10.6
Ferrosilite (mol%):7.1±6.5
Wollastonite (mol%):0.8±0.9
Classifier:C. Agee, UNM
Type spec mass (g):22
Type spec location:UNM
Main mass:Adam Bates
Comments:Submitted by C. Agee
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1617 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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