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

There's consequences for carbonate organisms.

And they said, calcium carbonate.

And they can pull calcium out of the environment, 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.

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

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

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

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