Eindsnede van Lunar feldspatic breccia Rabt Sbayta - 37×32×6 mm - 6.8 g - (1)

Omschrijving
Eindsnede van Lunar feldspatic breccia Rabt Sbayta - 37×32×6 mm - 6.8 g - (1)
Afrika

Rabt Sbayta 24.241°N, 14.701°W

Rio de Oro, Western Sahara

Classification: Lunar meteorite (feldspathic breccia)

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular minerals clasts of anorthite, orthopyroxene, olivine, pigeonite, exsolved pigeonite, ilmenite, chromite, fayalite and Ti-chromite in a fine grained, partly vesicular matrix of the same minerals plus troilite and minor barite. Rare quench-textured lithic clasts are present.

Geochemistry: Olivine (Fa23.4, FeO/MnO = 64; Fa43.9, FeO/MnO = 100), orthopyroxene (Fs58.6-60.4Wo2.4-1.9, FeO/MnO = 57-72, N = 2), pigeonite (Fs44.6Wo7.9, FeO/MnO = 54; Fs27.8Wo21.3, FeO/MnO = 47), augite host in exsolved pigeonite (Fs20.9Wo38.4, FeO/MnO = 54), fayalite (Fa78.1, FeO/MnO = 81), plagioclase (An96.5-97.2Or0.2, N = 2). Bulk composition (R. Korotev, WUSL) INAA of subsamples gave the following mean abundances (in wt.%) FeO 3.5, Na2O 0.37; (in ppm) Sc 7.2, Ni 90, La 1.1, Sm 0.57, Eu 0.82, Yb 0.50, Lu 0.07, Hf 0.35, Th 0.14. Magnetic susceptibility log χ (× 10-9 m3/kg) = 2.49.

Classification: Lunar (feldspathic breccia).

As members of the IMCA (International Association of Meteorite Collectors), we guarantee the authenticity of all our pieces.

(The certificate of authenticity will be delivered with the Meteorite)

Kavelgegevens
Aantal items
1
Belangrijkste mineraal / Naam meteoriet
Eindsnede van Lunar feldspatic breccia
Minerale vorm / Soort meteoriet
Rabt Sbayta
Supplement
510
Afmetingen
37×32×6 mm
Gewicht
6,8 g
Oorsprong (Land)
Afrika
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