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Northwest Africa 15339

Basic information

Name: Northwest Africa 15339
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15339
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 9.76 kg

Classification
history:

Meteoritical Bulletin:		(2023)	Diogenite-pm
Recommended:			Diogenite-pm

This is 1 of 63 approved meteorites classified as Diogenite-pm.

Comments:

Approved 4 Dec 2022

Writeup

Northwest Africa 15339 (NWA 15339)

(Northwest Africa)

Purchased: 2022 March

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Craig Zlimen and Mark Lyon in March 2022 from an Algerian dealer.

Petrography: Breccia composed predominantly of diogenitic orthopyroxene mineral clasts, some lithic diogenite clasts and minor (< 2 vol.%) lithic eucrite clasts (with fine-intergranular and gabbroic textures). Some but not all diogenitic orthopyroxene exhibits undulose extinction. Other minerals are exsolved pigeonite, calcic plagioclase, and accessory silica polymorph, medium-Ti chromite, ilmenite, troilite and kamacite. Some orthopyroxene in exsolved pigeonite exhibits reverse compositional zoning. Also present are some symplectitic intergrowths of augite with troilite and kamacite.

Classification: Diogenite (polymict breccia).

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