NameMica Schist
TextureFoliated; Medium- to coarse-grained
CompositionMuscovite, Biotite, Quartz, Feldspar
Index Minerals
ColorSilver to Gray
Metamorphic TypeRegional
Metamorphic GradeLow to middle grade (Low to middle P - T)
Parent RockShale or Mudstone
Metamorphic EnvironmentLow to middle grade regional metamorphism along a convergent plate boundary

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