Staurolite-Garnet-Mica Schist

Type	Metamorphic Rock
Texture	Foliated; Fine- to medium-grained
Composition	Muscovite, Biotite, Staurolite, Garnet, Quartz, Feldspar
Index Minerals	Staurolite and Garnet
Color	Medium silver to gray
Miscellaneous	Large dark-brown Staurolite crystals visible
Metamorphic Type	Regional
Metamorphic Grade	Middle Grade (Middle P – Middle T)
Parent Rock	Shale, Mudstone, or Felsic Igneous rocks
Metamorphic Environment	Middle grade regional metamorphism along a convergent plate boundary