Vanadinita (polisintética y flotante) - Mibladen, Midelt, Marruecos - Altura: 2.8 cm - Ancho: 2 cm- 13 g
N.º 17207675
NWA 10495, Lunar - feldspathic breccia - 26 x 22 x 25mm - 16.9gr
N.º 17207675
NWA 10495, Lunar - feldspathic breccia - 26 x 22 x 25mm - 16.9gr
Northwest Africa 10495 (NWA 10495)
Morocco
Find: 2015
Classification: Lunar meteorite (feldspathic breccia)
History: A group of similar stones were found together at an undisclosed location in southern Morocco during 2015.
Physical characteristics: Several grayish brown stones (total weight 15.6 kg) lacking fusion crust, but with a polished external appearance. All exhibit the same overall fine grained texture, with some visible larger whitish clasts within a dark gray matrix.
Petrography: (A. Irving and S. Kuehner, UWS) Relatively fine grained fragmental breccia composed of mineral clasts of anorthite, pigeonite, olivine, augite, Ti-chromite and troilite set in a matrix containing minor secondary barite.
Geochemistry: Olivine (Fa34.8-42.3, FeO/MnO = 86-95, N = 4), pigeonite (Fs29.8-32.4Wo8.8-12.9, FeO/MnO = 47-52, N = 3), augite (Fs20.6Wo35.4, FeO/MnO = 49), plagioclase (An96.4-97.1Or0.1, N = 2). Bulk composition (R. Korotev, WUSL) INAA of subsamples gave the following mean abundances: (in wt.%) FeO 7.0, Na2O 0.30; (in ppm) Sc 17.0, La 1.9, Sm 1.0, Eu 0.67, Yb 1.0, Lu 0.15, Hf 0.6, Th 0.15.
Classification: Lunar (feldspathic breccia).
Specimens: 24.3 g including one stone polished on one side at UWB; the remaining material is held by the anonymous finders.
También te podrían interesar
Este objeto apareció en
Cómo comprar en Catawiki
1. Descubre algo especial
2. Haz la puja más alta
3. Paga de manera segura