![68.0 Serpentinized harzburgite. Del Puerto Canyon, California. Serpentine minerals show up as green to black aphanitic materials and locally appear white, where light is reflected from them. The dominant fabric is one of a cross-fracture pattern, with dark serpentine veins filling the fractures that surround little, less serpentinized, cm-scale blocks. Some square grains distinctly visible because of reflection from relict cleavage (e.g., lower left and lower right), are serpentinized orthopyroxenes usually referred to as bastites. [Scale is standard GSA scale with cm divisions and mm-scale dots.]](../68.0.JPG)
68.0 Serpentinized harzburgite. Del Puerto Canyon, California. Serpentine minerals show up as green to black aphanitic materials and locally appear white, where light is reflected from them. The dominant fabric is one of a cross-fracture pattern, with dark serpentine veins filling the fractures that surround little, less serpentinized, cm-scale blocks. Some square grains distinctly visible because of reflection from relict cleavage (e.g., lower left and lower right), are serpentinized orthopyroxenes usually referred to as bastites. [Scale is standard GSA scale with cm divisions and mm-scale dots.]