![]() |
||
|
Northwest Africa 15375 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 15375 This is an OFFICIAL meteorite name. Abbreviation: NWA 15375 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 329 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 12 Nov 2022 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15375 (NWA 15375) (Northwest Africa) Purchased: 2021 Classification: Lunar meteorite (feldspathic breccia) History: Purchased by Mark Lyon from a meteorite dealer in Algeria in 2021. Physical characteristics: Single stone with minor fusion crust. Petrography: (D. Sheikh, Cascadia) Sample is brecciated and comprised of mm to cm-sized lithic and monomineralic clasts set within a dark, finer-grained fragmental matrix. Lithic clast lithologies identified include: anorthosites, olivine gabbros, harzburgites, noritic anorthosites, and impact-melt-rich clasts. Accessory phases include ilmenite and chromite (some Ti-bearing). Geochemistry: Olivine (Fa38.0±6.5, range Fa29.8-43.5, Fe/Mn=90±7, n=8), Low-Ca Pyroxene (Fs32.9±18.4Wo3.8±0.7, range Fs16.3-53.5Wo2.7-4.6, Fe/Mn=58±4, n=5), Pigeonite (Fs38.1±15.2Wo8.6±3.2, range Fs19.8-83.4Wo5.2-15.8, Fe/Mn=53±5, n=12), High-Ca Pyroxene (Fs23.3±7.7Wo38.4±2.1, range Fs17.5-43.7Wo34.8-41.8, Fe/Mn=53±9, n=10), Calcic Plagioclase (An96.0±1.5, range An92.8-99.2, n=25). Classification: Lunar (feldspathic fragmental breccia). Specimens: 20.2 g at Cascadia, main mass with Mark Lyon. | ||||||||||||||||||||||||||||||
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) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) |