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Northwest Africa 8195
Basic information Name: Northwest Africa 8195
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8195
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 86 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 344 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 28 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8195 (NWA 8195)

(Northwest Africa)

Purchased: 10/2011

Classification: HED achondrite (Eucrite, polymict)

Physical characteristics: The meteorite is partly covered with black fusion crust and shows a light grayish interior.

Petrography: It displays a typical basaltic texture of lath-shaped plagioclase and exsolved pyroxene. Lithic clasts of differently textured basaltic lithologies and dark melt clast are rarely encountered. Chromite, SiO2 polymorphs, and FeNi metal constitute minor phases.

Geochemistry: Low-Ca pyroxene: Fs60.6±0.5Wo2.3±0.3 (Fs59.5-61.6Wo1.8-2.9, n=12, FeO/MnO=27-30); Ca-pyroxene: Fs25.8±0.5Wo43.8±0.5 (Fs25.1-26.8Wo42.8-44.5, n=11, FeO/MnO=29-34); calcic plagioclase: An88.7±1.5 (An84.7-90.2, n=13)

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Munich, Germany
Date:P 10/2011
Mass (g):86
Pieces:1
Class:Eucrite-pmict
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):59.5-61.6, 25.1-26.8
Wollastonite (mol%):1.8-2.9, 42.8-44.5
Classifier:A. Greshake, MNB
Type spec mass (g):17.3
Type spec location:MNB
Main mass:ETH Zürich
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
ETH: Institut für Mineralogie und Petrographie, Sonneggstrasse 5, ETH Zentrum, CH-8092 Zürich, Switzerland (institutional address; updated 15 Sep 2017)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7101 approved meteorites from (Northwest Africa) (plus 2004 unapproved names)

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