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Northwest Africa 15325
Basic information Name: Northwest Africa 15325
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15325
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 1302 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  H5
Recommended:  H5    [explanation]

This is 1 of 11567 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 1 Oct 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15325 (NWA 15325)

(Northwest Africa)

Purchased: 2022

Classification: Ordinary chondrite (H5)

History: Reportedly found in Algeria. Purchased from a Moroccan mineral dealer at the mineral show in Genoa, Italy.

Petrography: (K. Metzler, IfP): Equilibrated ordinary chondrite with clearly visible chondrules and chondrule fragments. Secondary feldspar grains mostly <50 µm. High amounts of Fe-Ni metal, partly oxidized by terrestrial weathering.

Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa18.7±0.4 (Fa18.0-19.3; n=12); the mean low-Ca pyroxene composition is Fs16.2±0.3Wo1.2±0.1 (Fs15.7-16.7Wo1.0-1.3; n=12).

Classification: H chondrite based on mineral chemistry. Petrologic type 5 based on the equilibrated state of olivine and pyroxene and grain size of secondary plagioclase.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Genoa, Italy
Date:P 2022
Mass (g):1302
Pieces:1
Class:H5
Shock stage:C-S3
Weathering grade:W2
Fayalite (mol%):18.7±0.4
Ferrosilite (mol%):16.2±0.3
Wollastonite (mol%):1.2±0.1
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:I. Pardini and S.Crivello, Genoa, Italy
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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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