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Northwest Africa 15015
Basic information Name: Northwest Africa 15015
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15015
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 2.48 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 270 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 6 Aug 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15015 (NWA 15015)

(Northwest Africa)

Purchased: 2022

Classification: Mesosiderite

History: The meteorite was purchased from a meteorite dealer in Algeria.

Physical characteristics: Two brownish fragments without fusion crust.

Petrography: The meteorite displays a brownish interior and consists of silicate (about 70 vol%) and metallic (about 30 vol%) portions. Silicate-dominated regions predominantly consist of low-Ca-pyroxene and calcic plagioclase. Pyroxene often poicilitically encloses small plagioclase grains and vice versa. Ca-pyroxene is present as blebby and lamellar exsolutions in low-Ca pyroxene. Minor phases are silica, chromite, FeS, and merrillite. Kamacite and taenite constitute the metallic portion and are present as up to 1 cm sized irregular shaped aggregates dispersed throughout the rock.

Geochemistry: low-Ca pyroxene host crystals to augite exsolutions: Fs30.8±0.8Wo3.6±0.5 (Fs29.6-32.1Wo2.9-4.2, FeO/MnO=20-23, n=10); augite exsolutions: Fs14.2±0.4Wo43.9±1.6 (Fs13.5-15.0Wo40.8-45.5, FeO/MnO=16-22, n=10); calcic plagioclase: An90.9±1.1 (An88.5-92.9, n=10)

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2022
Mass (g):2480
Pieces:2
Class:Mesosiderite
Shock stage:S1
Weathering grade:moderate
Ferrosilite (mol%):30.8; 14.2
Wollastonite (mol%):3.6; 43.9
Classifier:A. Greshake, MNB
Type spec mass (g):23.9
Type spec location:MNB
Main mass:Mateusz Szyszko
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Robert Smart      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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