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Northwest Africa 4197
Basic information Name: Northwest Africa 4197
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4197
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 450 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 355 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 4 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 4197 (NWA 4197)

(Northwest Africa)

Purchased: 2005 Oct 27

Classification: HED achondrite (Eucrite, polymict)

Petrography: (K. Metzler, IfP) Breccia consisting of ophitic, subophitic, and gabbroic eucrite clasts, melt rock clasts and mineral fragments set into a fine-grained, recrystallized matrix. An87±2.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005 Oct 27
Mass (g):450
Pieces:5
Class:Eucrite-pmict
Weathering grade:W2-3
Ferrosilite (mol%):50±2 (n=10)
Wollastonite (mol%):14±2
Classifier:A. Bischoff, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:anonymous
Comments:Submitted by A. Bischoff
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Andreas Grünemeyer   
Gerald Armstrong   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7820 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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