14270 (8) Impact melt breccia
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Fact sheet
Description: 

14270 was collected as part of the Apollo 14 “comprehensive sample”. A circle about 14 meters in diameter was drawn and every rock on the surface placed in the same bag along with large soil samples 14259 and 14261. It has also been described as a crystalline-matrix breccia. It is coherent, vuggy, and has a seriate grain size distribution. It is relatively clast-free.

The sample weighed 25.59 grams before analysis and is 3.89±0.05 billion years old (Ar/Ar).

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

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