Anatase is a type of titanium oxide, characterized by the shape of its crystals.

This is a kind of flower.

This ring is made of titanium.

The characteristic of this building is its unique design.

His eyes were sharp, as if nothing could be hidden.

His sharp gaze pierced me.

I am amazed at his keen observation skills.

He took the sharp weapon in his hand and advanced towards the enemy.

This crystal has a very beautiful shape.

His thoughts finally crystallized.