Garnet-Mica Schist

Texture: Foliated; Fine to medium-grained

Composition: Muscovite, Biotite, Garnet, Quartz, Feldspar

Index Minerals: Garnet

Color: Shiny, medium gray

Miscellaneous: Small-sized dark red-brown garnets in foliation surfaces

Metamorphic Type: Regional

Metamorphic Grade: Middle Grade (Middle P and Middle T)

Parent Rock: Shale, Mudstone, or Felsic Igneous rocks

Metamorphic Environment: Middle grade regional metamorphism along convergent plate boundaries

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All images used on this page are from Dr. Harper's Metamorphic Rocks Page