Soapstone

Type	Metamorphic Rock
Texture	Non-foliated to weakly-foliated; Fine-grained
Composition	Talc
Index Minerals	Talc
Color	White, green or gray
Miscellaneous	Softer than fingernail; may be schistose in texture
Metamorphic Type	Hydrothermal
Metamorphic Grade	Low to Medium Grade
Parent Rock	Peridotite
Metamorphic Environment	Hydrothermal solutions concentrated during final stages of magma crystallization in batholiths or hot seawater solutions drawn down into subduction zones