Rock group	Metamorphic
Metamorphism type	Regional
Metamorphic rock class	Ultramafic
Protoliths	Peridotite Pyroxenite
Common minerals	Antigorite Chrysotile Lizardite (serpentine group) Talc

Serpentinite in Hand Sample

Serpentinite with a chrysotile hat
Serpentinite melange exposed on Marshall’s Beach in San Francisco
Serpentinite showing slickenfibers
Serpentinite breccia from the North Anatolian Fault
Serpentinite from the Josephine ophiolite

Serpentinite in Thin Section

Serpentinite in plane polars
Serpentinite in crossed polars