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Northwest Africa 15152
Basic information Name: Northwest Africa 15152
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15152
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 222 g
Classification
  history:
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 379 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 23 Jul 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15152 (NWA 15152)

(Northwest Africa)

Purchased: June, 2022

Classification: HED achondrite (Eucrite, polymict)

History: The meteorite was purchased on the Mineral and Gem Show in Sainte-Marie-aux-Mines, France.

Physical characteristics: Dark grayish rock with some fusion crust.

Petrography: The meteorite is a polymict breccia composed of up to 1.5 cm basaltic and black melt clasts plus up to 5 mm sized mineral fragments set in a more fine-grained clastic mineral matrix. Main minerals are exsolved pyroxene, compositionally zoned low-Ca pyroxene, and calcic plagioclase. Minor phases include silica, chromite, ilmenite, and FeS. No metal detected. Contains shock melt veins.

Geochemistry: low-Ca pyroxene host to exsolution lamellae: Fs51.7±0.4Wo12.5±0.1 (Fs51.3-51.7Wo12.3-12.7, FeO/MnO=28-30, n=7); Ca-pyroxene exsolution lamellae: Fs35.8±0.2Wo34.0±0.2 (Fs35.3-36.0Wo33.6-34.3, FeO/MnO=26-31, n=7); zoned low-Ca-pyroxene: Fs34.8±13.2Wo7.8±5.1 (Fs14.8-48.6Wo0.9-14.4, FeO/MnO=26-32, n=7); calcic plagioclase: An89.6±2.2 (An84.8-91.3, n=7).

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Sainte-Marie-aux-Mines, France
Date:P June, 2022
Mass (g):222.3
Pieces:1
Class:Eucrite-pmict
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):51.7; 35.8; 34.8
Wollastonite (mol%):12.5; 34.0; 7.8
Classifier:A. Greshake, MNB
Type spec mass (g):24.9
Type spec location:MNB
Main mass:Hanno Strufe and Andreas Gruenemeyer
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 Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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