Did you know that over 90% of the Earth’s crust is made of igneous rocks, with basalt covering most of the ocean floor? That includes the Atlantic and Pacific seafloors. You’re standing on a giant, ancient lava flow, and you didn’t even realize it.
Igneous Rocks: Formation, Classification, Examples, Uses – Geology In
Also, the Hawaiian Islands are nothing but a chain of enormous shield volcanoes built from thousands of basalt lava flows. Every time a new island like Loihi forms, it’s igneous rock being born, hot and hissing in the deep ocean.
And here’s a cool one: diamonds are not igneous, but they are often found in a volcanic rock called kimberlite. So when you see a diamond ring, you’re actually looking at a carbon passenger that hitched a ride on an ancient magma express.
