Rocks created from large amounts of heat and pressure are called metamorphic rocks.

Here's a breakdown:

* Metamorphic rocks are formed when existing rocks (igneous, sedimentary, or even other metamorphic rocks) are transformed by intense heat and pressure. This process doesn't melt the rock completely, but it does change the rock's mineral composition, texture, and sometimes even its chemical composition.

Examples of metamorphic rocks include:

* Marble: Formed from limestone (a sedimentary rock) under intense heat and pressure.

* Slate: Formed from shale (a sedimentary rock) under moderate heat and pressure.

* Quartzite: Formed from sandstone (a sedimentary rock) under intense heat and pressure.

* Gneiss: Formed from various types of rocks under very high heat and pressure.

Let me know if you'd like to learn more about specific types of metamorphic rocks!