Lunar Meteorite 16.16g I NWA 11303 I Lunar Feldspathic Breccia Teaching Slice
On Offer: 16.16g Amazing lunar meteorite full polished "*teaching" slice specimen of the feldspathic breccia NWA 11303.
|Northwest Africa 11303|
Name: Northwest Africa 11303
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11303
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass: 6 kg
This is 1 of 145 approved meteorites classified as Lunar (feldsp. breccia). [show all]
Search for other: Lunar meteorites
|Comments:||Approved 24 Feb 2018|
Writeup from MB 107:
Northwest Africa 11303 (NWA 11303)
Purchased: 2017 Mar
Classification: Lunar meteorite (feldspathic breccia)
History: Material excavated from a site near Tindouf, Algeria, was purchased by Dustin Dickens in March 2017 from a Mauritanian dealer. The coordinates of the site are unknown.
Physical characteristics: Many small fragments coated by pale reddish-brown terrestrial weathering products. The fresh interiors of the largest fragments exhibit white to beige clasts in a dark gray, fine-grained matrix.
Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral grains of anorthite, olivine, orthopyroxene, exsolved pigeonite, ferroan pigeonite, augite, ilmenite, Ti-chromite and fayalite in a partly vesicular matrix containing minor kamacite and barite.
Geochemistry: Olivine (Fa26.7-47.2, FeO/MnO = 75-81, N = 2), orthopyroxene (Fs24.1Wo3.6, FeO/MnO = 67), orthopyroxene host (Fs47.1Wo3.3, FeO/MnO = 68), ferroan pigeonite (Fs52.4Wo18.8, FeO/MnO = 67), augite (Fs8.0Wo44.3, FeO/MnO = 35), plagioclase (An96.7-97.4Or0.2-0.1, N = 2).
Classification: Lunar (feldspathic regolith breccia).
Specimens: 20.0 g including one polished endcut at UWB; remainder with Mr. D. Dickens.
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