14274 (4) Crystalline-matrix Breccia
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Fact sheet
Description: 

14274 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 is a coherent microbreccia with crystalline matrix and has has a seriate grain size distribution and most clasts are individual minerals.
 
The sample weighed 15.18 grams before analysis. It has not been dated.

Our thin section is slightly thick and displays plagioclase feldspar as pale yellow crystals (in XPL). An example of a large plagioclase feldspar is shown in rotation 2.

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
In Focus
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Type:
Type: 
metamorphic
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