14072 (15) Olivine basalt
 >View Microscope
Fact sheet
Description: 

14072 is a porphyritic mare basalt with medium-sized olivine phenocrysts, sub-ophitic to ophitic texture and little glass in its residium. Olivine appears in 14072 as large, sub-rounded phenocrysts up to 2 mm across, as inclusions in large pyroxenes and as part of the late-stage assemblage with cristobalite and spongy network of metallic iron.

The sample weighed 45 grams before analysis and is 4.04±0.05 billion years old (Ar/Ar).

The mounting resin of this thin section has deteriorated over time and now contains clusters of feathery crystallites around the margins of the thin section.

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
Collection:
What\
Type:
Type: 
igneous
What\
Rock-forming minerals:

Rock forming mineral:

What\
Accessory minerals:

Accessory minerals:

What\