Lucy Cross

Do Red Diamonds Exist? The Science Behind Their Color

What Is the Climate in the Canadian Shield?

Where Does Alexandrite Come From and How Is It Formed?

Is Andesite an Intrusive or Extrusive Rock?

Why Are There So Many Lakes in Canada?

Does Dallas, Texas Get Tornadoes?

What Is Partial Melting and How Does It Work?

What Is Relative Humidity in Weather?

What Are Black Stones Called? From Onyx to Obsidian

Why Can’t Earthquakes Be Predicted?

How Many Volcanoes Are in Central America?

Why Is There a Blue Ring Around the Moon?

Where Does the Ocean End? From Shoreline to Seafloor

What Is the Smallest Known Star?

How Are Rocks Different From Minerals?

What Is an Eclipse Season and How Does It Work?

What Is Brown Quartz Called?

What Is Mountain Obscuration and What Causes It?

Is Obsidian a Precious Stone? Its True Classification

Why Is the Congo River So Deep?