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Northwest Africa 316
Basic information Name: Northwest Africa 316
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 316
Observed fall: No
Year found: 2002
Country: Algeria
Mass:help 60.3 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  H4
Recommended:  H4    [explanation]

This is 1 of 6459 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
Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2002
Mass (g):60.25
Pieces:1
Class:H4
Shock stage:S1
Weathering grade:W5
Fayalite (mol%):18.9±0.2
Classifier:A. Rubin, UCLA
Type spec mass (g):20
Type spec location:UCLA
Main mass:Dean Bessey
Comments:Chondrules are well defined. Olivine exhibits sharp optical extinction. Very few low-Ca pyroxene grains exhibit polysynthetic twinning. Weathering veins rim the chondrules and traverse the sample.; submitted by Simone de Leuw
Institutions
   and collections		 UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Bessey: Dean Bessey ,P.O. Box 40810, Glenfield, Auckland 1310 , New Zealand; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1315 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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