Here's why:

* Phaneritic texture: This means the rock has large, visible crystals that are easily recognizable with the naked eye.

* Plutonic rocks: These form deep underground from slowly cooling magma. This slow cooling process allows the crystals to grow large.

Examples of plutonic rocks with phaneritic textures include:

* Granite

* Gabbro

* Diorite

Other textures that can occur in plutonic rocks:

* Porphyritic: Contains large crystals (phenocrysts) embedded in a finer-grained matrix.

* Pegmatitic: Extremely large crystals, often exceeding several inches in size.

Let me know if you'd like more information about plutonic rocks or their textures!