The Meteoritical Bulletin, No. 104
Purchased: 2015 January
Mass: 64 g
Classification: Lunar meteorite (feldspathic breccia)
Purchased in Temara, Morocco by Adam Aaronson in
characteristics: Single stone (64 g) with a wind-ablated
exterior and an interior consisting of whitish clasts (up to 8 mm) in a
dark gray matrix.
(A. Irving and S. Kuehner, UWS)
Breccia composed of mineral clasts of anorthite, olivine, orthopyroxene,
subcalcic augite, augite, ferropigeonite, ilmenite, Al-bearing chromite,
Ni-poor kamacite and troilite, together with rare glass fragments, in a
finer grained matrix. Patches of shock glass are present.
Olivine (Fa24.6-40.4, FeO/MnO = 88-105, N = 3), orthopyroxene
Fs50.7Wo2.1; FeO/MnO = 54-65, N = 3), pigeonite (Fs19.4Wo10.6,
FeO/MnO = 63), ferropigeonite (Fs54.2Wo16.6, FeO/MnO
= 62), titanian ferropigeonite (Fs74.6Wo14.8,
FeO/MnO = 65, TiO2 = 8.4 wt.%, Al2O3 = 1.4
wt.%, Na2O = 0.18 wt.%), subcalcic augite (Fs38.0Wo27.0,
FeO/MnO = 58), augite (Fs6.5Wo43.7, FeO/MnO = 39),
plagioclase (An95.5-98.5Or0.2, N = 2).
(R. Korotev, WUSL)
INAA of subsamples gave the following mean abundances (in wt.%) FeO 3.7, Na2O
0.40; (in ppm) Sc 7.4, Ni 160, La 3.1, Sm 1.45, Eu 0.80, Yb 1.1, Lu 0.15,
Hf 1.1, Th 0.57.
Lunar (feldspathic fragmental breccia).
Specimens: 12.8 g
including one polished endcut at UWB. The
remainder is held by Aaronson.