![]() |
||
|
Northwest Africa 15288 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 15288 This is an OFFICIAL meteorite name. Abbreviation: NWA 15288 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 315 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 1 Oct 2022 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15288 (NWA 15288) (Northwest Africa) Purchased: 2021 Classification: Lunar meteorite (feldspathic breccia) History: Purchased by Edwin Thompson in 2021 from a meteorite dealer in Algeria. Later purchased by Paul Stahura. Physical characteristics: Single stone with no fusion crust observed. Petrography: (D. Sheikh, Cascadia) Sample is a fragmental breccia consisting of sub-angular to sub-rounded mm-sized lithic and mineral clasts set within a fine-grained plagioclase-rich matrix. Lithic clast lithologies identified in the sample are primarily highland lithologies and include: anorthosites, olivine norites, noritic anorthosites, and anorthositic norites (Stoffler et al., 1980). Accessory phases include Cr-spinel, ilmenite, and SiO2-rich glass. Geochemistry: Olivine (Fa22.9±3.6, range Fa18.6-32.6, Fe/Mn=86±10, n=16), Low-Ca Pyroxene (Fs20.8±1.0Wo3.7±0.6, range Fs19.5-21.8Wo2.8-4.1, Fe/Mn=49±8, n=4), Pigeonite (Fs21.5±1.6Wo14.8±6.4, range Fs19.1-23.3Wo7.3-23.3, Fe/Mn=46±7, n=5), Augite (Fs17.1±5.4Wo31.5±7.2, range Fs11.3-21.8Wo27.3-39.8, Fe/Mn=42±7, n=3), Calcic plagioclase (An97.1±0.6, range An95.7-97.9, n=27). Classification: Lunar (feldspathic fragmental breccia). Specimens: 20.7 g at Cascadia, main mass with Paul Stahura. | ||||||||||||||||||||||||||||||
Data from: MB111 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) Thompson: Edwin Thompson, 5150 Dawn St., Lake Oswego, OR 97035, United States (private address) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |