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Northwest Africa 12235
Basic information Name: Northwest Africa 12235
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12235
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 1740 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  H4
Recommended:  H4    [explanation]

This is 1 of 6340 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 20 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12235 (NWA 12235)

Morocco

Purchased: Jan. 2017

Classification: Ordinary chondrite (H4)

History: Purchased from S. Tutorow via Ebay. Place of origin is stated as Morocco.

Physical characteristics: Physical Characteristics: One mass of 1740 g. Completely fusion encrusted. Brown fusion crust. Sample cut once for preparing sections and a 21.88 g slice for Yale.

Petrography: Average chondrule diameter is 0.35 mm. No matrix, but sharp chodrule boundaries. Almost all Fe,Ni metal altered, but considerable volumes of troilite remain.

Classification: Ordinary Chondrite (H4).

Specimens: Main mass is at WesU, Joe Webb Peoples Museum. Several thick sections were prepared as well. YPMNH.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Ebay; S. Tutorow seller
Date:P Jan. 2017
Mass (g):1740
Pieces:1
Class:H4
Weathering grade:W4
Fayalite (mol%):18.1±1.1 (N=15)
Ferrosilite (mol%):16.4±0.9 (N=10)
Wollastonite (mol%):1.5±0.4
Classifier:K. Abe and J. Greenwood, WesU
Type spec mass (g):21.88
Type spec location:YPMNH
Main mass:WES
Comments:Submitted by James P. Greenwood
Institutions
   and collections
YPMNH: Yale University Peabody Museum of Natural History P.O. Box 208118 New Haven, CT 06520-8118 , United States; Website (institutional address; updated 30 Aug 2014)
WesU: Department of Earth and Environmental Sciences, Wesleyan University, 45 Wyllys Avenue, Middletown, CT 06459, United States (institutional address; updated 20 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1837 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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