This mountain is made of diorite.

This mountain is mainly composed of granodiorite.

This rock has been here for hundreds of years.

I go hiking in the mountains every weekend.

Sen is my best friend.

Flash, true to his name, is good at moving instantly.

The park is full of fresh greenery.

He loves rock climbing.

I hurt my foot when I kicked the rock.

Midori is my best friend.