Lunar Sample Atlas: Apollo Thin Sections

Lunar Sample 15379

Mission	Apollo 15
Lithology	basalt
Location	collected as part of a rake sample from the rim of Spur Crater (part way up the Apennine Front).
Description	finegrained mare basalt; Ryder (1985) states that: "15379 is a finegrained mare basalt containing about 20% stubbyangular and partly "hollow" plagioclase, abundant brownish pyroxene, and at least some olivine and ilmenite". Plagioclase is milky, but not maskelynite. Both plagioclase and pyroxene have deformed twinning. Veins of dark glass, containing bubbles, crosscut the sample and show evidence of flow. Ryder (1985) finds that sample 15380 is very similar to 15379. It also has shock features and glass veins.