It's not different, it's the same stuff calcium carbonate, calcium carbonate.

And they said, calcium carbonate.

There's consequences for carbonate organisms.

They can pull calcium out of the environment, and put down a layer of calcium and then carbonate, calcium and carbonate.

The main framework material of coral reefs is calcium carbonate.

But it's not just the carbonate producers that are affected.

And I said, that's what this is this is calcium carbonate.

When you evaporate seawater, the first thing to crystallize out is calcium carbonate.

Oh, by the way, just in case you weren't already guessing, it's calcium carbonate.

There are many organisms that build their shells out of calcium carbonate plants and animals both.

Here, we've got a protocell to extract carbon dioxide out of the atmosphere and turn it into carbonate.

This abalone shell is a biocomposite material that's 98 percent by mass calcium carbonate and two percent by mass protein.

We can analyze the carbonate that makes up the coral, and there's a whole bunch of things we can do.

Because the lowly abalone is able to lay down the calcium carbonate crystals in layers, making this beautiful, iridescent mother of pearl.

And that builds up on the evaporators and that's what that image on the left is gradually getting encrusted with the calcium carbonate.

Aluminum buffer action, aluminum hydroxide is what we think it is, uh, plus the barium carbonate, strontium titanate, strontium oxides, barium oxides, probably some aluminum oxides in there.