60215 (31) Cataclastic Anorthosite (brecciated)
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Fact sheet
Description: 

60215 is actually a polymict breccia, because it contains clasts of material other than anorthosite. However, the largest portion is almost pure white and very plagioclase rich. The anorthositic portion is both highly shocked and cataclastic. The brown mottled fragments are also of plagioclase composition (probably devitrified maskelynite) in which abundant, minute (<1 mm) mafic inclusions have been reported (not obvious in our thin section). A few small basaltic clasts are also present.

The sample weighed 386 grams before analysis and has not been dated.

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

In Place
In Time
Accuracy:
Timescale:
Not known
Ma = Millions of years ago
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Type: 
metamorphic
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