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Northwest Africa 15022
Basic information Name: Northwest Africa 15022
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15022
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 2.52 kg
Classification
  history:
Recommended:  H3    [explanation]

This is 1 of 682 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15022 (NWA 15022)

(Northwest Africa)

Purchased: 2015 Feb

Classification: Ordinary chondrite (H3)

History: Bought by José Antonio Sanchez from a Saharawi meteorite dealer in Spain.

Physical characteristics: Oriented stone with partly preserved fusion crust.

Petrography: (K. Metzler, IfP) Unequilibrated ordinary chondrite, consisting of chondrules and chondrule fragments (chemical type I and II), metal and sulfide grains. The mean apparent chondrule size is 410±230 µm (n=146).

Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa19.0±2.4 (Fa16.8-25.3; n=17); the mean low-Ca pyroxene composition is Fs12.7±5.3Wo1.0±0.7 (Fs1.5-16.8Wo0.1-2.7; n=18).

Classification: H chondrite, based on metal content, mineral chemistry, and mean apparent chondrule size. Petrologic type 3, based on the large chemical variation of olivine and pyroxene. Suggested petrologic subtype 3.8 (PMD of Fa values: 12.6).

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Spain
Date:P 2015 Feb
Mass (g):2524
Pieces:1
Class:H3
Shock stage:C-S1
Weathering grade:W2
Fayalite (mol%):19.0±2.4
Ferrosilite (mol%):12.7±5.3
Wollastonite (mol%):1.0±0.7
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:José Antonio Sanchez
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. 111, in preparation (2022)
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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