A Collection of Gems for Your Valentine’s Day Enjoyment

Even if the V-day leaves you meh, the geology of gemstones is still pretty great

Join Our Community of Science Lovers!

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American


Happy Valentine's Day to those who celebrate it, and happy Half-Price Candy Eve to those who don't! Let's take a break from earthquakes and volcanoes oh my and play with some sparkly things instead. We've investigated the geology behind a lot of shinies over the years.

The Real Heart of the Ocean

On a day that's ostensibly all about romance, what could be more romantic than the story of the beautiful necklace that Rose gave to the ocean that froze her lover Jack to death? Discover the truth about the Heart of the Ocean, and the geologic processes that created its lovely central stone.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Forged in Cosmic Furnaces: The Geology of the Seahawks Super Bowl Rings (Prologue)

Now that we've got the romantic stuff out of the way, let's go back to the very beginning. See where geology and the elements that make up all of the shiny things it creates were born!

Grown in Hot Rock Depths: The Geology of the Seahawks Super Bowl Rings Part I
Discover the origin of those most romanticized stones: diamonds. They go deeper than you might think...

Diamonds: Tears of the Gods
The story of diamonds continues! Herein, we explore the remarkable volcanoes that bring these deep stones to the surface.

The Astonishing Origin of Garnets in Rhyolite

The Glories of Garnet Mica Schist

Finding pretty semi-precious gemstones in a store is great, but finding them in the wild is super great. Finding out how they formed is extra super great.

The Prettiest Rock: Blueschist Edition

This amazing metamorphic stone has garnets in it, and so much more! The story of how the Earth makes it is truly intense.

The Origin of Amethysts May Leave You Tingly

Amethyst is basically a superhero version of quartz, people. Here's its origin story. And according to the ancients, this is exactly the gemstone you need to prevent a morning of regret after a night of celebrating with wine.

Aquamarine: A Neptunian Stone's Plutonic Origin Story

This sea-colored gemstone has a surprisingly hot genesis.

Tiger's Eye: A Deceptive Delight

Semi-precious gemstones deserve some love today, too! Here's one of my faves: a tawny brown beauty that shimmers with a cat-like gleam. You might be rather astonished to find out what it's made from.

"Pyrite Is Not Born to Fool"

Fool's gold is endlessly pretty, and has quite a remarkable history. But perhaps the most surprising fact about it is that it's not completely fooling about gold...

Oceans of Ore: How an Undersea Caldera Eruption Created Jerome, Arizona

Where would gemstones be without precious metals to set them in? Here's how a rich and wonderful ore body formed, long ago, when part of the land that became Arizona was deep under the ocean, and also the site of a gargantuan volcanic eruption.

I hope you enjoyed that tour through pretty, shiny things. May your day sparkle!

Credit: Dana Hunter

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe