76335 (27) Cataclastic Magnesian Anorthosite
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Fact sheet
Description: 

76335 is a highly shocked anorthosite. It contains an orthopyroxene­ dominated assemblage which includes orthopyroxene, olivine, highly crushed plagioclase feldspar, chromite, phosphate and a new lunar mineral “keiviite-Y”. Merrillite, baddeleyite and zirkelite have also been reported.

The sample weighed 503 grams before analysis and is 4.28±0.06 billion years old (Sm/Nd).

Further details of this and other Apollo samples are here: http://curator.jsc.nasa.gov/lunar/

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Not known
Ma = Millions of years ago
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igneous
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