Space weathering effects and potential spectral alteration on Phobos and the Moon: Clues from the Fe content of olivine

Open Access

Fig. A.3

Synthetic Fe-rich olivine powders before laser irradiation. The grain size of the powders is <75 µm. Image (a) Fa₂₉, (b) Fa₅₀, (c) Fa₇₁, and (d) Fa₁₀₀. The colors of the initial olivine gradually change from white to dark green with increasing Fe content.

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