The Meteoritical Bulletin, No. 104
Found: 2012 October 28
Mass: 125.4 g
single stone was found by an anonymous finder Oct. 28, 2012
The anorthositic highland breccia contains clasts up to 1 cm, which are
mainly anorthositic lithologies and crystalline impact melt breccias. It
also contains glassy fragments, some of which are highly vesicular, veins,
and impact spherules (mostly devitrified) embedded in a fine-grained,
clastic matrix. The spherules indicate an origin at the lunar surface.
Accessory minerals: ilmenite (abundant), troilite, FeNi metal (rare), and
zircon (very rare).
SEM-EDS-analyses revealed that plagioclase in the bulk rock is anorthitic
with a mean of An93.4±5.1 (total range: An70-97; n =
32). Olivine is highly variable in composition Fo20-60 (mean: Fo40±9;
n = 16; Fe/Mn = approx. 110 (EDS)). Low-Ca pyroxene also shows variable
composition with Fs20-58En29-77Wo2.5-15
(mean: Fs37.5±10En54.6±10Wo7.8±3.3; n =
28; Fe/Mn = approx. 60 (EDS). Some analyzed Ca-pyroxenes have Fs18-34En28-45Wo33-41.
The meteorite is moderately weathered.
Lunar meteorite (anorthositic breccia)