The Meteoritical Bulletin, no. 100
Find: 2010 November
Mass: 184 g
meteorite (feldspathic breccia)
Multiple stones were found together on Hamada du Drâa, Morocco, in late
2010 and purchased by Jack Schrader in April 2010 from a dealer in
characteristics: A total of 17 dark gray, uncrusted
stones (combined weight 184 g) containing small white clasts.
(A. Irving and S. Kuehner, UWS)
A fine grained, heterogeneous, fragmental breccia composed of mineral
clasts and ophitic-textured lithic clasts. Mineral clasts include anorthitic
plagioclase, orthopyroxene, subcalcic augite, pigeonite, olivine (some very
fayalitic), sparse intergrowths of hedenbergite+fayalite+silica (after
former pyroxferroite), ilmenite, irregular kamacite grains and troilite.
Pigeonite (Fs21.6-27.8Wo5.9-12.4, FeO/MnO=49-58),
orthopyroxene (Fs32.3Wo3.1, FeO/MnO=61), subcalcic
augite (Fs18.2-29.8Wo33.2-27.9, FeO/MnO=42-47),
olivine (Fa52.2-85.5, FeO/MnO=90-100), plagioclase (An95.9-97.9Or0.1-0.2).
Bulk composition (R. Korotev, WUSL):
FeO 5.0 wt%, La 3.5 ppm, Sm 1.6 ppm, Yb 1.25 ppm, Th 0.60 ppm.
Achondrite (lunar, feldspathic breccia).
Specimens: A total of 20.2 g of sample (3 stones) are on deposit
The main masses are held by J.