Metamorphic.
gniess, slate, and quartzite
- Marble - Schist - Gniess - Slate - Quartzite
Slate
due to the chemical changes and climate change.
Slate
foliated
Examples of metamorphic rock include:SlateGneissSkarnPhylliteAmphiboliteSchistQuartziteMarbleGranuliteBlueschistSueviteEclogiteSerpentiniteGossanPsammitePeliteGreenschistMigmatiteMyloniteHornfels
Gneiss is generally coarse-grained.
Yes. Gneiss is a foliated metamorphic rock.
metamorphic
because of the minerals that are mixed in with the gniess during the rock cycle(probably at the igneous stage) reflect light off of themselves
no slate is an igneous rock