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Northwest Africa 7298
Basic information Name: Northwest Africa 7298
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7298
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 35.1 g
Meteoritical Bulletin:  MB 101  (2012)  H3.8
Recommended:  H3.8    [explanation]

This is 1 of 78 approved meteorites classified as H3.8.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 18 Dec 2012
Writeup from MB 101:

Northwest Africa 7298 (NWA 7298)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (H3.8)

Petrography: (M. Weisberg, AMNH) Chondrules and fragments have sharp boundaries with the matrix. Multiple lithic clasts (all H chondrite origin) were identified, including a large (~1 cm) ovoid clast with a higher degree of shock (S3) than the host.

Geochemistry: Average olivine is Fa16.5±4.9, range is Fa0.9-23.3 based on 27 analyses; Low-Ca pyroxene is Fs14.6±4.8Wo0.9±0.3, 22 analyses.

Classification: Based on the texture and the deviation of mean olivine and pyroxene compositions, this is a type 3 chondrite of high petrologic grade, estimated to be H3.8.

Specimens: Entire specimen at AMNH.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2005
Mass (g):35.1
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):16.5 ±4.9 (N = 27)
Ferrosilite (mol%):14.6 ± 4.8 (N = 22)
Wollastonite (mol%):0.9 ± 0.3
Classifier:M.K. Weisberg (KCCU, AMNH) and J. M. Friedrich (FordU, AMNH)
Type spec mass (g):35.1
Type spec location:AMNH
Main mass:AMNH
Comments:Submitted by J. M. Friedrich
   and collections
AMNH: Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West, New York, NY 10024, United States (institutional address; updated 18 May 2013)
KCCU: Kingsborough College of the City University of New York, Brooklyn, NY 11235, United States (institutional address; updated 28 Dec 2011)
FordU: Fordham University, 441 East Fordham Road, Bronx, NY 10458, United States (institutional address; updated 18 Dec 2012)
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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