14425 (3) Glass Sphere
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Fact sheet
Description: 

14425 is a black glass sphere about 0.8 cm in diameter. About 5% of the surface is covered with bright grey metallic globules. Micrometeorite craters are also observed on the surface, but have apparently not been studied. The interior glass has partially devitrified. This large glass sphere was sieved from the “bulk soil sample” (14163) collected near the lunar module. The bulk composition is similar to the Apollo 14 regolith – it is not volcanic in origin. Two types of glass are visible in the thin section. One is clear and devoid of metallic spheres. The other area is cloudy with numerous small metallic iron spherules with ~10 % Ni and up to 9% P. Because of the isotropic nature of the glass, there are no rotations in this virtual microscope.

The sample weighed 0.794 grams before analysis.

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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