serpentinite

About 0.08 uses per million words.

Meaning

1. noun a metamorphic rock composed of serpentine minerals formed by the hydration of ultramafic rocks

Similar words

sheared serpentinization serpentine lizardite green marble sericite serpierite ultramafite ultrabasic orthopyroxenite

Often followed by

and is bodies in melange body are conglomerate matrix