Lineated Gneiss

Type Metamorphic Rock
Texture Foliated / Lineated; Medium- to coarse-grained
Composition Potassium Feldspar and Quartz
Index Minerals
Color Pink
Miscellaneous Lineated or rod-like appearance
Metamorphic Type Regional
Metamorphic Grade High Grade (High P – High T)
Parent Rock Shale, Mudstone, or Felsic Igneous rocks
Metamorphic Environment High grade regional metamorphism along a convergent plate boundary