It can become magnetic in rain
The property of foliation in gneiss, caused by its alternating layers of minerals, makes it resistant to weathering. This foliation gives gneiss a strong and cohesive structure, preventing the rock from easily breaking down in response to weathering processes.
A banded texture
a banded texture
The interlocking mineral grains of gneiss make it resistant to weathering because they prevent water and air from easily penetrating the rock. Gneiss also has a high content of resistant minerals like quartz and feldspar, which are less prone to chemical breakdown. Additionally, the banding in gneiss provides structural integrity that helps resist weathering.
A Gneiss is a Metamorphic rock
Gneiss is foliated.
No, gneiss is metamorphic.
Gneiss is foliated and coarse grained
Gneiss is a rock, not a mineral.
Gneiss is a part of the earths lower crust. No matter where you drill you will eventually uncover gneiss.
No. Gneiss has alternating light and dark bands.
No. Phyllite can metamorphose into schist and then into gneiss.