14311 (86) Impact melt breccia
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Fact sheet
Description: 

14311 was one of the largest samples returned from Apollo 14. It is a very coherent impact melt breccia. The melted and recrystallized matrix has reacted with, and perhaps dissolved, some of the clasts. Void space in the matrix has annealed to form larger vugs. Significant clasts include ilmenite ore and gabbronorite, although these are not present in our thin section.

14311 weighed 3204 grams before analysis and is 3.82±0.03 billion years old (Ar/Ar).

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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metamorphic
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