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Northwest Africa 7109
Basic information Name: Northwest Africa 7109
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7109
Observed fall: No
Year found: 2011
Country: Morocco
Mass:help 1441 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  L5
Recommended:  L5    [explanation]

This is 1 of 6696 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 16 Dec 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 7109 (NWA 7109)

Morocco

Found: 2011

Classification: Ordinary chondrite (L5)

History: Purchased by Matt Morgan at the Denver Gem and Mineral Show in 2011.

Physical characteristics: Single stone, interior is brown with numerous small metal grains and a few weathering veins.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a few distinct chondrules set in granoblastic olivine and pyroxene. Plagioclase and kamacite present.

Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa24.1±0.3, Fe/Mn=49±5, n=9, low-Ca pyroxene Fs21.3±1.9Wo1.5±0.2, Fe/Mn=31±4, n=7.

Classification: Ordinary chondrite (L5), weathering grade W3.

Specimens: 35 g including a probe mount on deposit at UNM, MtMorgan holds the main mass.

Data from:
  MB100
  Table 1
  Line 1637:
Place of purchase:Denver
Date:2011
Mass (g):1440.5
Pieces:1
Class:L5
Weathering grade:W3
Fayalite (mol%):24.1±0.3
Ferrosilite (mol%):21.3±1.9
Wollastonite (mol%):1.5±0.2
Classifier:C. Agee, UNM
Type spec mass (g):35
Type spec location:UNM
Main mass:MtMorgan
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)
MtMorgan: Matt Morgan, Mile High Meteorites, P.O. Box 151293, Lakewood, CO 80215-9293, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1466 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

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