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Northwest Africa 12226
Basic information Name: Northwest Africa 12226
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12226
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 38 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 412 approved meteorites classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 13 Nov 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12226 (NWA 12226)

(Northwest Africa)

Purchased: 2007 Dec

Classification: HED achondrite (Eucrite)

History: Purchased from a Moroccan dealer at the mineral show (CCH) in Hamburg, Germany

Petrography: (K. Metzler, IfP) Unbrecciated ophitic basalt with exsolved pyroxene. Accessories are ilmenite, chromium spinel, silica polymorph, Ni-free iron metal, and troilite.

Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene (n=15): Fs58.3±1.2Wo6.7±1.2 (Fs55.5-59.5Wo5.7-9.1); mean Fe/Mn (at.): 32. Exsolved Ca-rich pyroxene lamellae (n=9): Fs35.3±2.6Wo34.4±3.3 (Fs32.3-39.0Wo29.4-38.5); mean Fe/Mn (at.): 34. Plagioclase (n=5): An88.4±1.8 (An86.4-90.5).

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Hamburg, Germany
Date:P 2007 Dec
Mass (g):38
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):58.3; 35.3
Wollastonite (mol%):6.7; 34.4
Classifier:K. Metzler, IfP
Type spec mass (g):8
Type spec location:IfP, Münster
Main mass:Anonymous
Comments:Submitted by K. Metzler, IfP
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. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6559 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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