Agate Rock Sitting in a Museum Turns Out to Be a 60-Million-Year-Old Dinosaur Egg

Can you imagine finding a piece of cool rock only for it to turn out to be a dinosaur egg from millions of years ago? That is exactly what happened with the agate rock that is sitting in the Natural History Museum in London.

It was a beautiful rock that was thought to possess some type of unique mineral, that was why it was displayed in the museum for hundreds of years. However, scientists have now confirmed that it was a titanosaur egg that existed for roughly 60 million years.

Image Credits: Natural History Museum

A Misplaced Masterpiece

A beautiful agate rock, displayed at the Natural History Museum in London since 1883, which they assumed to be just a normal rock with crystallized minerals, turns out to be a dinosaur egg. In 2018, curator Robin Hansen, who is very familiar with how fossilized dinosaur eggs look like noticed that the rock sitting in the museum has a striking resemblance. This happened in France as part of a mineral show.

Because of this event, experts have begun to analyze the rock by studying its shape and size, comparing it to multitudes of fossilized dinosaur eggs that have also been stuck with rocks. Then they found that it matches the titanosaur dinosaur eggs from India, China, and Argentina.

This result was also suggested after finding out that the rock was from around 60 million years ago, and was collected from central India, where titanosaurs were the most common living dinosaur at that time.

Read more: Natural History Museum

Secrets Hidden Inside for 140 Years

Meet the Titanosaur

The scientists who examined the rock said this was why the museum collections are important, because we never really know what they have found until more knowledge is unearthed. In this case, the rock containing agate turned out to be a dinosaur egg, and that thought to be a mineral rock has been sitting there for nearly a century and a half.

The true nature of the rock was only revealed after testing it closely. The outside rind resembles an egg, and the surrounding areas suggest traces of neighboring “eggs”, which could mean that this particular egg is a part of multiple ones that were supposed to hatch together, about 60 million years ago.

Another fun fact is that the dinosaur eggs were only been scientifically recognized in 1923, which means that these eggs were discovered first before we even thought that there were confirmed fossilized dinosaur eggs left on the planet.

How Did It Turn to Crystal?

Paleontologists suggest that after the titanosaur laid the egg, there was a volcanic eruption that covered the egg with lava, instantly stopping its development. Then it cooled off, and over the course of millions of years, silica-rich water was able to get inside, bringing in agate with it, until it became crystallized.

Thanks to this process, it has been preserved for millions of years, although it could’ve been more dinosaur egg-looking if the volcanic eruption had not happened immediately after it was hatched, and given it some time to form. This begs the question: What else do we have in our museums that could be as shocking as this rock?

Read more: Live Science

Why This Discovery Matters

These findings highlight just how important it is for us to maintain our museum collections not only for today, but for the future, once humanity has developed new technology that allows them to see more from the past.

This discovery also adds information about how titanosaurs hatch, their nesting habits, and egg size. It also tells us that volcanic preservation might be more common than we thought, and maybe, just maybe, more dinosaur eggs could be found near these locations.

How do dinosaur fossils form? | Natural History Museum

Author's Final Thoughts

What looks like a beautiful decorative rock turns out to be a rare dinosaur egg turned to crystal, and it was hiding there in plain sight. For over 140 years, no one person was able to identify that it was a dinosaur egg, which also showcases the ability of our paleontologists. This ultimately should remind us that sometimes, everyday normal things that we take for granted could hold stories we never even thought could happen.

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