Answer: Gneiss
Explanation: Gneiss is a metamorphic rock formed from shale at very high temperature and pressure condition. They exhibit a preferred alignment or orientation of platy minerals called foliation. They are coarse grained and exhibit gneissose banding. They are formed from highest grade regional metamorphism with temperature between 450 - 600 degree celcius and pressure between 800 - 1000 mega pascal. They generally occur in cores of fold mountain belts where mountain ranges have been eroded.
<h3>Role</h3>
The Supreme Court plays a very important role in our constitutional system of government. First, as the highest court in the land, it is the court of last resort for those looking for justice. Second, due to its power of judicial review, it plays an essential role in ensuring that each branch of government recognizes the limits of its own power. Third, it protects civil rights and liberties by striking down laws that violate the Constitution. Finally, it sets appropriate limits on democratic government by ensuring that popular majorities cannot pass laws that harm and/or take undue advantage of unpopular minorities. In essence, it serves to ensure that the changing views of a majority do not undermine the fundamental values common to all Americans, i.e., freedom of speech, freedom of religion, and due process of law.
<h3>Impact</h3>
The decisions of the Supreme Court have an important impact on society at large, not just on lawyers and judges. The decisions of the Court have a profound impact on high school students. In fact, several landmark cases decided by the Court have involved students, e.g., Tinker v. Des Moines Independent School District (1969) held that students could not be punished for wearing black armbands to school to protest the Vietnam War. In the Tinker case, the Court held that "students do not shed their rights at the schoolhouse gate."

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