Hey, I’m the soft, smooth one — the quiet beauty of ancient seas! Made of tiny coccolith shells that piled up over millions of years, I’ve been around since the time of the dinosaurs. I may look simple, but I’m the stuff behind iconic landmarks like the White Cliffs of Dover! 

Yo! I’m the ultimate team player — a solid squad of pebbles and gravel, all bonded by time and pressure! Formed in wild rivers and crashing shores, I’ve been around, rolled smooth, and packed tight. Every piece of me has a story to tell! 

I’m the soft, porous one with a light touch! Formed from millions of tiny diatom shells, I’ve been soaking up everything around me for ages. You’ll find me in cat litter, cleaning up messes, and holding everything together — all while being as light as air! 

Hola! I'm Flint. I'm sharper than I look! Back in the day, humans used me to light fires and make cool tools. I may be ancient, but I still rock! 

"Classic, dependable, and full of history — that’s me! From forming the White Cliffs of Dover to being the backbone of the Great Pyramids, I’ve stood the test of time. I’m all about building foundations, one layer at a time, with shells, corals, and a little help from the sea!" 

I’m the salty one with a twist of color! Born from the drying up of ancient seas and lakes, I’m all about evaporation and concentration. Whether I’m sparkling white or showing off in shades of pink or purple, I’m a sign of big changes in the Earth’s climates. But don’t let my past fool you — I’m still essential, even in your kitchen! 

A true wanderer, shaped by time and nature — that’s me! I’m born from the compaction of sand grains over thousands of years, whether in deserts, beaches, or river deltas. My colors can change, but the key to my story is the tiny grains of quartz that make me up. I might look like quartzite, but I'm just a step before that transformation! 

"Quiet, fine-grained, and layered — that’s me! I may look simple, but I’m the foundation of much of the Earth's surface. Through years of compaction, I’ve become the most common sedimentary rock. I may split easily, but I hold a lot of history in my layers!"