The Meteoritical Bulletin, no. 99
Find: 2010 August, 2010
Mass: 13.7 g
meteorite (feldspathic breccia)
Found on Hamada du Dr‚a, Morocco, in August 2010
and purchased by Stefan Ralew in November 2010 from a dealer in Ouarzazate, Morocco.
characteristics: A small dark gray stone (13.7 g) lacking
fusion crust and containing small white clasts.
fine grained fragmental breccia composed of mineral clasts, sparse lithic
clasts (some with ophitic textures) and rare glass fragments. Mineral
clasts include anorthitic plagioclase, subcalcic augite, augite,
hedenbergite, pigeonite (some exsolved), olivine, ilmenite, kamacite and
Pigeonite (Fs25.8-40.0Wo13.7-12.3, FeO/MnO = 54-63),
subcalcic augite (Fs23.7Wo29.1, FeO/MnO = 51), augite
(Fs16.3Wo43.2, FeO/MnO = 90), olivine (Fa32.6-33.1,
FeO/MnO = 88-89), plagioclase (An95.1-96.5Or0.1).
Bulk composition (R. Korotev, WUSL):
FeO 4.7 wt%, La 3.5 ppm, Sm 1.6 ppm, Yb 1.32 ppm,
Th 0.60 ppm.
Achondrite (lunar, feldspathic breccia).
Specimens: A total of 2.8 g is on deposit at UWS. The
main mass is held by Ralew.