The type of rock formed when other rocks go through intense heat and pressure but do not melt is called metamorphic rock.

Here's a breakdown:

* Metamorphic means "changed form."

* Intense heat and pressure are the key ingredients in the process.

* No melting is crucial. If the rock melts, it becomes magma, which then cools and solidifies to form igneous rock.

Some common examples of metamorphic rocks include:

* Marble: Formed from limestone.

* Slate: Formed from shale.

* Gneiss: Formed from granite.

* Quartzite: Formed from sandstone.

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