First class express delivery and provenance provided.
I SHIP WORLDWIDE WITH DHL, FEDEX OR SIMILAR EXPRESS SERVICE, TRACKED & TRACED
TRULY A BEAUTIFUL MUSEUM QUALITY SHOWPIECE FRESH FUSION CRUST WITH VELVETY TEXTURE AND TONS OF CONTRACTION CRACKS OFFICIAL CLASSIFICATION DATA SOURCE: THE METEORITICAL SOCIETY INTERNATIONAL SOCIETY FOR METEORITICS AND PLANETARY SCIENCE LUNAR AND PLANETARY INSTITUTE METEORITICAL BULLETIN DATABASE
|
Northwest Africa 15027 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 15027 This is an OFFICIAL meteorite name. Abbreviation: NWA 15027 Observed fall: No Year found: 2022 Country: Niger Mass: 985 g | ||||||||||||||||||||||||||||||
Classification history: |
| ||||||||||||||||||||||||||||||
Comments: | Approved 4 Mar 2023 | ||||||||||||||||||||||||||||||
Writeup | Writeup from MB 112: Northwest Africa 15027 (NWA 15027) Niger Purchased: 2022 Jan Classification: Mesosiderite History: Found in Niger and purchased by Mbark Arjdal in January 2022 from a dealer in Niger. Petrography: (A. Irving, UWS and P. Carpenter, WUSL ) This specimen is a heterogeneous breccia containing sporadic larger, polygranular aggregates of olivine (up to 7 by 8 mm in size) and smaller clasts of anorthite in a matrix composed in some places of intergrown orthopyroxene and anorthite with minor silica polymorph and in other places composed of intergrown metal and orthopyroxene. Kamacite (typically altered to Fe oxides) is distributed irregularly. The original metal content is estimated to ~40 vol%. Accessory phases include troilite, Al-Mg-rich chromite and merrillite. Cross-cutting veinlets of secondary Fe hydroxides are present. Geochemistry: Orthopyroxene (Fs28.0-28.8Wo1.5-2.1; Fs35.4-36.1Wo3.2-3.5; FeO/MnO = 26-29; N = 4), olivine (Fa27.2-30.1, FeO/MnO = 41-43, N = 6), anorthite (An90.2-93.6Or0.2, N = 3). Classification: Mesosiderite (breccia). Specimens: 23.0 g including a polished mount at UWB ; remainder with Mr. M. Arjdal. | ||||||||||||||||||||||||||||||
Data from: MB112 Table 0 Line 0: |
| ||||||||||||||||||||||||||||||
Institutions and collections | UWS : University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL : Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB : University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) | ||||||||||||||||||||||||||||||
Catalogs: | |||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 112, in preparation (2023)
| ||||||||||||||||||||||||||||||
Photos: |
| ||||||||||||||||||||||||||||||
Geography: |
| ||||||||||||||||||||||||||||||
Also see: | This lists the most popular meteorites among people who looked up this meteorite. | ||||||||||||||||||||||||||||||
Revision history: | This lists important revisions made to data for this record. |