15669 (8) Olivine Basalt
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Fact sheet
Description: 

The matrix of 15669 is rather fine-grained, with scattered, eroded olivine phenocrysts. Ilmenite is platy and skeletal. The eroded olivine phenocrysts have silicate melt inclusions (see rotation 2). The pyroxene grains are optically and chemically zoned. Chromite has a distinct boundary with ulvospinel overgrowths. Metallic iron grains containing significant Co and Ni are present.

The sample weighed 4.4 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
In Focus
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Type:
Type: 
igneous
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