Definition

A type of dark, fine-grained rock that is formed from cooled lava, often used in construction and road building.

Example

The builders used dolerite for the foundation of the new road.

Conversation

Have you ever seen a piece of dolerite up close?

No, I haven't! What does it look like?

It's a dark, fine-grained rock that can be really interesting.

That sounds cool! I’d love to check it out sometime.

Synonyms & Antonyms

Root Explanation

Dolerite originates from the Greek word 'doleros' (meaning deceitful or treacherous) and the suffix '-ite' (meaning a mineral or rock). The word 'dolerite' refers to a specific type of rock that is often considered deceptive in its appearance due to its similarity to other rocks.

Memory Tip

Think of the Greek word for deceit ('doleros') to remember that dolerite is a rock that can be misleading in its appearance.

Visually Confused Words