Figure F12. Typical XRD patterns of rock pieces and silty clay-sized serpentine measured on bulk powder mounts. Serp = serpentine minerals, Bru = brucite, Opx = othopyroxene, Cpx = clinopyroxene, Fo = forsterite, ML = mixed-layer clay mineral, Chl = chlorite, Ar = aragonite, Cc = calcite, Am = amphibole, Zeo? = suspected analcime, Ha = halite.

Figure F12. Typical XRD patterns of rock pieces and silty clay-sized serpentine measured on bulk powder mounts. Serp = serpentine minerals, Bru = brucite, Opx = othopyroxene, Cpx = clinopyroxene, Fo = forsterite, ML = mixed-layer clay mineral, Chl = chlorite, Ar = aragonite, Cc = calcite, Am = amphibole, Zeo? = suspected analcime, Ha = halite.