Pink Spinel on the Moon: A Half-Century of Discovery, from Remote Sensing to Sample Analysis

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This research aims to summarize the discoveries and advances regarding pink spinel on the Moon over the past fifty years.
Reviewed the identification of spectral signals from lunar mineral mapping missions since the Apollo era.
Analyzed lunar meteorites and Apollo/Luna samples for petrological diversity and composition.
Conducted high-temperature and high-pressure experiments to understand formation mechanisms of spinel.
Spectral signals identified spinel's presence in large impact basins and crater rims across the Moon.
Petrological analyses revealed spinel's composition diversity and confirmed it can be detected even at low concentrations (1%-5%).
Experiments clarified that assimilation of plagioclase and impact melting are key formation processes of spinel.

Review outlines the discovery of pink spinel on the Moon, revealing its potential scientific and resource significance.

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Hongyi Chen (2026) studied this question.

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