Sandstone is exposed to extreme heat and pressure changing into quartzite. What type of rock. Is it metamorphic rock

Yes.

Yes u r right

Yes, your statement is correct. Sandstone that is exposed to extreme heat and pressure undergoes a process called metamorphism and transforms into a type of rock known as quartzite.

To determine the type of rock, it is important to understand the process of metamorphism. Metamorphism is the alteration of existing rocks due to changes in temperature, pressure, and sometimes chemical reactions. These transformative processes occur deep beneath the Earth's surface.

In the case of sandstone, which is a sedimentary rock composed of sand-sized grains of minerals, when it is subjected to intense heat and pressure, the minerals within the rock recrystallize and form interlocking grains of quartz. Through this metamorphic process, sandstone is transformed into quartzite, which is a hard, non-foliated metamorphic rock primarily composed of quartz.

So, to answer your question, sandstone that has undergone metamorphism and transformed into a rock consisting of interlocking quartz grains is called quartzite.