TextureNon-foliated to weakly-foliated; Variable grain size
Index Minerals
ColorMottled Green and gray
MiscellaneousMay be harder than glass in places
Metamorphic TypeHydrothermal
Metamorphic GradeLow Grade
Parent RockPeridotite
Metamorphic EnvironmentHydrothermal solutions concentrated during final stages of magma crystallization in batholiths or hot seawater solutions drawn down into subduction zones

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