14074 (6) Basalt
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Fact sheet
Description: 

14074, 14077, 14078 and 14079 are feldspathic KREEP basalts. They are similar to 14073 from the same location. All are holocrystalline sub-ophitic olivine basalts with an abundance of lath-shaped plagioclase crystals. 

The sample weighed 5.2 grams before analysis and is 3.78±0.02 billion years old (Ar/Ar).

KREEP is an acronym built from the letters K (the atomic symbol for potassium), REE (Rare Earth Elements) and P (for phosphorus). It is a geochemical component of some lunar impact breccia and basaltic rocks.

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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