Cathodoluminescence and Raman Spectromicroscopy of Forsterite in Tagish Lake Meteorite: Implications for Astromineralogy

Figure 3

(a) Cathodoluminescence spectra of TLa and TLb areas in forsterite showing three major regions centered at 400–460, 600–650, and 700–800 nm. (b) CL spectra of forsterite grains followed by a peak fitting procedure. (c) CL intensity versus energy plot of the Tagish Lake forsterite. The 1.74 eV peak corresponds to Cr³⁺, and the 1.94 eV peak is assigned to Mn²⁺.

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(b)

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