| MetSoc Home Publications Contacts |
|
||
|
||
| Northwest Africa 14442 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Northwest Africa 14442 This is an OFFICIAL meteorite name. Abbreviation: NWA 14442 Observed fall: No Year found: 2019 Country: Morocco Mass:  73.1 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 649 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
| Comments: | Approved 11 Nov 2021 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 14442 (NWA 14442) Morocco Purchased: 2019 Feb Classification: Ureilite History: Purchased by Sean Tutorow from a dealer in August 2019 in Morocco. Physical characteristics: The type specimen has a rugged, patinaed dark brown surface. The interior has a gray to brown shade in some areas. Petrography: (A. Bouvier, UBayr) The specimen has a fine-grained texture (grain size from 400 to 800 microns) including ~80 vol% olivine, 15 vol% pigeonite, 2 vol% as orthopyroxene, and remaining as dark interstitial material that consists of varying amounts of graphite, metal, Fe-rich metal (~5% Ni), and weathering products identified as iron oxides. Geochemistry: Olivine cores Fa19.9±4.2 (n=21) and reduced rims Fa6.1±3.6 (n=13), with minor CaO=0.4±0.2 wt% and Cr2O3=0.7±0.2 wt% (n=34), pigeonite Fs16.2±3.2Wo11.0±2.2 with the following minor element compositions Cr2O3=1.2±0.2, Al2O3=0.8±0.6 and TiO2=0.06±0.06 (all in wt%) (n=8), and low-Ca pyroxene Fs5.6±0.6Wo1.1±0.1 (n=3). Classification: Ureilite Specimens: 14.7 g including a polished mount at UBayr. S. Tutorow holds the main mass. | ||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
| Institutions and collections |
UBayr: Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany (institutional address; updated 5 Feb 2020) |
||||||||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||||||||
| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
| ||||||||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 2012 approved meteorites from Morocco (plus 35 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||