NWA 11451 Achondrite Eucrite Part Slice weighing 0.78g
£24.50
In stock
NWA 11451 Achondrite Eucrite Part Slice weighing 0.78g
| Northwest Africa 11451 | |||||||||||||||||||||||||||||||
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| Basic information | Name:Â Northwest Africa 11451 This is an OFFICIAL meteorite name. Abbreviation:Â NWA 11451 Observed fall:Â No Year found:Â 2017 Country:Â (Northwest Africa) Mass:  Â 106 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 350 approved meteorites classified as Eucrite-pmict.   [show all] | ||||||||||||||||||||||||||||||
| Comments: | Approved 13 Oct 2017 | ||||||||||||||||||||||||||||||
| Writeup | Writeup from MB 106: Northwest Africa 11451 (NWA 11451) (Northwest Africa) Purchased: 2017 Apr Classification: HED achondrite (Eucrite, polymict) History: Purchased by Fabien Kuntz in April 2017 from a dealer in Erfoud, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Breccia consisting of shocked and altered eucrite clasts (with differing textures) plus related debris in a finer grained matrix. Pyroxene (exsolved pigeonite) is pale orange in thin section and calcic plagioclase is polycrystalline; accessory minerals include fayalite, ilmenite, troilite, Ni-free metal and barite. Geochemistry: Orthopyroxene host (Fs67.9Wo2.0, FeO/MnO = 29), clinopyroxene exsolution lamella (Fs31.1Wo42.9, FeO/MnO = 33), orthopyroxene host (Fs58.7Wo3.5, FeO/MnO = 33), clinopyroxene exsolution lamella (Fs26.5Wo43.2, FeO/MnO = 33), fayalite (Fa81.2-81.8, FeO/MnO = 43), plagioclase (An90,7-90.9Or0.5-0.2, N = 2). Classification: Eucrite (polymict breccia, shocked). Specimens: 22.37 g including one polished thin section at PSF; remainder with Kuntz. | ||||||||||||||||||||||||||||||
| Data from: MB106 Table 0 Line 0: |
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