|Dar al Gani 1042|
|Basic information||Name: Dar al Gani 1042|
This is an OFFICIAL meteorite name.
Abbreviation: DaG 1042
Observed fall: No
Year found: 1999
Mass: 801 g
This is 1 of 41 approved meteorites classified as Lunar. [show all]
Search for other: Lunar meteorites
|Comments:||Approved 28 Mar 2007|
Writeup from MB 91:
Dar al Gani 1042 27°10.92′N, 16°18.01′E
Dar al Gani region, Al Jufrah, Libya
Achondrite (lunar, feldspathic regolith breccia)
History and physical characteristics: A single stone
of 801 g with partial fusion crust was found in 1999.
Petrography and mineral compositions: (T. Arai, NIPR) Feldspathic regolith breccia with typical lunar highland breccia clasts (e.g., feldspathic crystalline melt breccias, granulitic lithologies, cataclastic anorthosites, etc.) embedded in a well-lithified matrix. Granulitic clasts consist of dominant plagioclase (An95.4–96.7) with orthopyroxene (Wo3Fs19En78, Fe# = 0.19), clinopyroxene (Wo8–12Fs26–28 En62–64, Fe# = 0.28–0.30; Wo44Fs9En47, Fe# = 0.15–0.16), olivine (Fo65–69,81–84), ilmenite, and Ti-rich chromite (Chr45Hc19Usp36). Isolated mineral fragments are plagioclase, co-existing augite and pigeonite, and olivine with ranges of compositions similar to those in the above clasts. Anorthositic impact glasses occur both as glass veins and spherules. The FeO/MnO value of olivines (90 ± 20) supports a lunar origin. Terrestrial calcites pervasively occur along cracks.
Classification: Achondrite (lunar feldspathic regolith breccia); moderate weathering.
Type specimen: One specimen of 37 g is on deposit at JAXA. One 6.1 g sample and thin sections are on deposit at NIPR. An anonymous finder holds the main mass.
NIPR: Antarctic Meteorite Research Center, National Institute of Polar Research, 1-9-10 Kaga, Itabashi, Tokyo, Japan (institutional address; updated 12 Feb 2011)
USP: Darcy P. Svisero, Institute of Geosciences, University of Sao Paulo, Brazil (institutional address; updated 28 Feb 2011)
JAXA: Japan Aerospace Exploration Agency, Tokyo, Japan (institutional address)
|References:||Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)|
This is 1 of 1037 approved meteorites from Al Jufrah, Libya
This is 1 of 1469 approved meteorites from Libya (plus 21 unapproved names) (plus 4 impact craters)
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