60115 (14) Polymict Breccia
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Fact sheet
Description: 

60115 is a black and white breccia with light matrix. It is clast-rich with distinct clast boundaries and contains relics of shocked anorthosite, grading into swirly glass, are abundant. Glass penetrates some of the dark clasts and aphanitic impact melts are present. Charles Meyer aptly summarises the sample in his Lunar Compendium entry - “ It’s a real mess”.

Our thin section shows a light coloured, mainly anorthositic clast with intense shock features and regions of melting (rotation 2). Fragmented clasts within this clast contain significant metallic iron.

The sample weighed 132.5 grams before analysis and has not been dated.

Further details of this and other Apollo samples are here: http://curator.jsc.nasa.gov/lunar/

Discolouration of the thin section mounting resin shows as yellow patches throughout the section.

In Place
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Timescale:
Not known
Ma = Millions of years ago
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metamorphic
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