Figure F23. A. Close-up photograph of an oxidatively altered, aragonite-veined dunite (interval 209-1272A-2R-1, 60.5–72.5 cm). B. XRD spectrum of Sample 209-1272A-2R-1, 61–63 cm, showing significant proportions of aragonite along with serpentine and magnetite.

Figure F23. A. Close-up photograph of an oxidatively altered, aragonite-veined dunite (interval 209-1272A-2R-1, 60.5–72.5 cm). B. XRD spectrum of Sample 209-1272A-2R-1, 61–63 cm, showing significant proportions of aragonite along with serpentine and magnetite.