![]() |
||
|
Northwest Africa 13744 | |||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 13744 This is an OFFICIAL meteorite name. Abbreviation: NWA 13744 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||
Classification history: |
This is 1 of 511 approved meteorites classified as Diogenite. [show all] Search for other: Achondrites, Diogenites, and HED achondrites | ||||||||||||||||||||||||
Comments: | Approved 25 Apr 2021 | ||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 13744 (NWA 13744) (Northwest Africa) Purchased: 2015 Classification: HED achondrite (Diogenite) History: Type specimen donated to Cascadia by Mohammed Hmani at the Tucson Gem Show in 2020. Physical characteristics: Physical Characteristics: Single pale yellow-orange-colored stone partially covered with black fusion crust and speckled with black pyroxene gains up to 2 mm across. Petrography: (M. Hutson, A. Ruzicka, Cascadia): In thin section, coarse-grained material forms poorly defined clasts separated by finer-grained cataclastic zones. Orthopyroxene and calcic clinopyroxene grains, and accessory chromite are present. Clinopyroxene is mostly present as individual grains, but also as exsolution lamellae in low-Ca pyroxene. Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene: Fs27.4±0.3Wo2.6±0.8, Fe/Mn=26.1, Fe/Mg=0.391, N=33; High-Ca pyroxene Fs10.4±0.4Wo44.2±0.4, N=7; Chromite: MG# 16.2±1, CR# 74.2±1.2, N=8. Classification: Diogenite based on mineralogy and mineral compositions. Specimens: Cascadia holds 34.8 g in one piece, as well as a polished thin section and butt. | ||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
|
||||||||||||||||||||||||
Institutions and collections |
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011) Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address) |
||||||||||||||||||||||||
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 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |