Explore different types of minerals by finding out how and why they are formed, how they have changed over time, what they look like, and what they're made of. With the help of Rock Solid! facts and cool examples, you'll discover how amazing minerals can be, from ruby crystals to stalagmites and stalactites in caves to talcum powder.

What are minerals? -- What do minerals look like? -- Where do we find minerals? -- What kind of minerals are there? -- Why are minerals important? -- Where do we use minerals? -- What materials do we get from minerals? -- Grow your own crystals.