![]() |
||
|
Northwest Africa 1943 | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 1943 This is an OFFICIAL meteorite name. Abbreviation: NWA 1943 Observed fall: No Year found: 2002 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||
Classification history: |
This is 1 of 436 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||
Writeup![]() |
Writeup from MB 88:
Northwest Africa 1943 Morocco Found 2001 Achondrite (howardite) A 1220 g complete stone was purchased in Erfoud in 2002 April. Classification and mineralogy (T, Bunch and J. Wittke, NAU): mostly fine-grained with rare, large clasts of fine-grained eucrite breccias. Clast modes: diogenites, 44 vol%; basaltic eucrites, 17 vol%; cumulate eucrites, 13 vol%; basaltic breccias, 6 vol% and shocked clasts, 20 vol%. Diogenite pyroxenes, Fs22.5-57.3Wo3-13.5; chromite, Cr/Cr+Al = 0.63 and metal, Ni = 5.4 wt%. Remarkably fresh with shiny crust and no oxidation around metal grains. Specimens: type specimen, 22.5, NAU; main mass, MFarmer. | ||||||||||||||||||
Data from: MB88 Table 4 Line 99: |
|
||||||||||||||||||
Institutions and collections |
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012) NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address) |
||||||||||||||||||
Catalogs: |
| ||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
| ||||||||||||||||||
Photos: |
| ||||||||||||||||||
Geography: |
Statistics: This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) |