Gneiss is a part of the earths lower crust. No matter where you drill you will eventually uncover gneiss.
The presence of visible minerals aligned in bands or layers would distinguish schist and gneiss from quartzite and marble. Schist and gneiss show foliation due to intense metamorphism, while quartzite and marble are more homogenous in texture.
$100,000,00.
Pretty is a subjective opinion. Many would think that gneiss is pretty, however, due the metamorphic foliations.
If granite were subjected to intense heat and pressure, it would likely change to gneiss, a metamorphic rock. Gneiss forms through the recrystallization of minerals in granite under high temperature and pressure conditions.
A Gneiss is a Metamorphic rock
Gneiss is foliated.
Gneiss is foliated and coarse grained
Gneiss is a rock, not a mineral.
No, gneiss is metamorphic.
A gneiss is a metamorphic rock. Metamorphic rocks are created by the alteration of rocks by heat and pressure. Therefore, a gneiss may be created from an igneous rock in which case it would be called an orthogneiss.
Both are metamophic Rock. Gneiss is formed from Granite. Schist from other types it depends on what you are planning on drilling. Also it depends on what type of Schist. Gneiss would probably be the better choice though.
You would need to look at the individual minerals. A rock does not have a luster.