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Raman spectroscopy is a powerful tool for field-based geology and planetary exploration. From the first lunar materials brought back by the Apollo missions to gemstone identification, mineralogists and geologists increasingly are relying on Raman spectroscopy. The Raman bands of major minerals are sharp and spread across a wide spectral range with little overlap in the spectra of mineral mixtures, allowing simultaneous characterization of multiple components. Raman spectroscopy is also an ideal method for gemstone authentication due to its non-destructive nature and rapid measurement time.

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A Portable Multiexcitation Dispersive Raman Spectrometer for Environmental Analysis