Metamorphic rock. Garnet mica shchist. Two different types of mica - muscovite is evenly dispersed throughout the rock and biotite occurs in little pockets. Quartz is also evenly dispersed throughout the rock. Original rock, before metamorphism, would have been sandstone with little shale partings …
Metamorphic rock. Garnet mica shchist. Two different types of mica - muscovite is evenly dispersed throughout the rock and biotite occurs in little pockets. Quartz is also evenly dispersed throughout the rock. Original rock, before metamorphism, would have been sandstone with little shale partings in it.
