The Meteoritical Bulletin, No. 100
Mass: 42.4 g
Found in Morocco in 2010 and purchased from the finder by G. Tomelleri.
characteristics: A single black stone (42.4 g) lacking
fusion crust. The interior is dark gray and displays several small white
(V. Moggi Cecchi, S. Caporali, G. Pratesi, MSP)
The overall texture consists of coarse-grained inclusions set in a
fine-grained matrix. The matrix contains isolated mineral clasts, mainly consisting
of augite, plagioclase and olivine, and a fine grained mineral debris
enclosed within a dark, partly glassy and vesicular matrix. The large
coarse grained inclusions consist of elongated plagioclase and
clinopyroxene crystals set in a glassy matrix. Opaque phases are
represented by ilmenite, ulvospinel and chromite.
Olivine (Fa33.7-49.2, Fe/Mn=108, n=20, Cr=1500 ppm, Mn=3100
ppm), augite (Fs23.8.5-31.2En24.9-30.0Wo27.3-30.0Al-px
13.9-19.5; FeO/MnO mean=65.6; V=400 ppm; Ca=0.61 afu), plagioclase (An83.4Or0.8; K
= 0.008 afu); Oxygen isotopes: (I. Franchi, R. Greenwood, OU)
δ17O = 3.58, δ18O = 6.84, Δ17O
= 0.02 per mil.
Achondrite (lunar, feldspathic breccia).
Specimens: 9.5 g sample is on deposit at MSP.