Here's a piece of limestone.

The very unusual Kaidun chondrite is a chondrite breccia consisting of a variety of highly oxidized and highly reduced lithologies.

After the limestone rocks, what?

And it's just limestone, nothing really special about it.

On the trail we took just before we reached the limestone rocks.

Rocks n Diamonds

It's the same stuff as this and the same stuff as this.

And it's different than this limestone, you can see that.

Oh, he's the Rock the Rock of Gibraltar.

A geological formation consists of naturally occurring materials, either consolidated or unconsolidated, such as rock, gravel and sand.

I headed up hill just past the big limestone rocks we saw that Sunday.

Some rocks and some finches.

Reward gravel thieves? proposal refused.

Like a rock.

Most of the gravel is reserved for the power station.

Decorative Rock

This is the target site, the world's deepest hydrothermal spring at Cenote Zacaton in northern Mexico.

an inlet among the rocks, many rocks that... she had never realized,

They're clinging to a rock face and actually scraping bacteria off that rock face.

The waves crashed against the rocks.

I looked down from the top into the rocks.

Not so fast. Wait a minute. Large rock...

Ray It was Crease Limestone, and that was produced by sea creatures 350 million years ago in a nice, warm, sunny atmosphere.

You hit the solid rock.

You're climbing on little dimples and nubbins in the rock.

Did he steal gravel to sell or to build himself?

A rock fell from above.

No water, rocky soil.

Didn't you see the rocks?

And architect Christian Kerrigan has come up with a series of designs that show us how it may be possible to actually grow a limestone reef underneath the city.

The core comes up as these cylindrical tubes of limestone.

Today, the Xinjiang Oilfield Company of the China National Petroleum Corporation officially announced that they have discovered the world's largest reserves of conglomerated oil fields in the center of the Mahu Area in the Junggar Basin. The tertiary petroleum reserves discovered exceed 1.2 billion tons.

He hit his head against a rock.

He hit his head against a rock.

You fell off the rocks?

So it would all be built in stone, in French limestone, except for this metal piece.

There is a median point between tiny rock and gigantic rock, and in fact, if any of you have ever been to near Winslow, Arizona, there is a crater in the desert there that is so iconic that it is actually called Meteor Crater.

Cement and lime

We get no gravel so the Ballas steal it.

You wouldn't build a building out of this stuff, and you wouldn't try to give a lecture and write on the chalkboard with this.

No water, rocky soil.

And shale is not quite completely competent rock.

You bet what? I'll bet... he said he'd get off your rocks.

Get those wagons to the rocks.

Latin'calx 'for'lime'