| MetSoc Home Publications Contacts |
|
||
|
||
| Northwest Africa 11639 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Northwest Africa 11639 This is an OFFICIAL meteorite name. Abbreviation: NWA 11639 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass:  583 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 623 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
| Comments: | Approved 20 Feb 2018 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 107:
Northwest Africa 11639 (NWA 11639) (Northwest Africa) Purchased: 2017 Classification: Ureilite History: The meteorite was purchased from a local meteorite dealer in Morocco. Physical characteristics: Dark brownish fragment lacking any fusion crust. Petrography: The meteorite displays a characteristic cumulate texture of up to 2 mm sized olivine and orthopyroxene crystals. Reduced rims in olivine are abundant. The meteorite contains flaky graphite. Geochemistry: reduced rims in olivine: Fa3.6-5.8; olivine contains 0.32±0.02 wt% Cr2O3 and 0.25±0.02 wt% CaO | ||||||||||||||||||||||||||||||
| Data from: MB107 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
| Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
||||||||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||||||||
| References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
| ||||||||||||||||||||||||||||||
| Photos: |
| ||||||||||||||||||||||||||||||
| Geography: |
Statistics: This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||