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Dinosaur Train•Season 4•Episode 20

What's at the Center of the Earth? (4): Minerals

Feb 20, 201711 min

While digging even further underground, the drill bit on the Drill Engine Train breaks. The Pteranodon Family find themselves in the Cave of Giant Crystals, where they learn all about rocks and crystals (what they are, how they're different, how they form). In order to

Previous episodeE19 · What's at the Center of the Earth? (3): Troglobites Next seasonSeason 5

Seasons6

All 1 2 3 4 5 6

Season 4 Episodes20

Trains, Submarines and Zeppelins: Part 1

Trains, Submarines and Zeppelins: Part 2

Rollin' on The Riverboat Part 1

Rollin' on The Riverboat Part 2

Nest Swap

The Herd is The Word

Stop and Smell The Flowers

Moms' Campout

Where Have All The Lizards Gone?

Conductor's Sleepover

Junior Conductors Academy: Part One

Junior Conductors Academy: Part Two

Crystal and King Benefit Concert (1)

Crystal and King Benefit Concert (2)

Spooky Tree

Spinosaurus Super Model

What's at the Center of the Earth? (1): Layers

What's at the Center of the Earth? (2): Fossils

What's at the Center of the Earth? (3): Troglobites

What's at the Center of the Earth? (4): Minerals

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Episode Summary

"What's at the Center of the Earth? (4): Minerals" is episode 20 of Dinosaur Train season 4. It aired on February 20, 2017.

Continue to Season 5 Best of Season 4