Rockology 101

Welcome to class! This is a place for students of all ages to learn about Rogers Group operations and products or just have a little fun!

Rockology 101: Learning
Rockology 101: Fun Facts
Mine Boggling Rocks
Ingredients of Camping Equipment
Geological Sites of Interest
Rockology 101: Activities

Mine Boggling Rocks


Fiber optics and computer chips are made from silicon. Silicon's base component is sand.

Hourglasses and other devices utilizing sand were clocks in Ancient Egypt and in the Middle Ages. The British Navy used hourglasses as late as 1839 for approximate timekeeping. Standard equipment included an hourglass, a half-hour glass, and an eight minute glass. Timing devices using sand are still in common use today; they are used as egg times and in board games.

In some deserts, sand dunes make mysterious music. Studies show that sand grains in musical dunes are especially smooth. As sand slides down the dune, the motion makes low booming sounds similar to the sounds of drums and bass fiddles.

Sand on the beaches of Florida's Panhandle region sparkles white because it is nearly pure quartz.

squiggle Asphalt

In 1876, Pennsylvania Avenue was one of the nation's first asphalt paved roads.

In 1498, on his third voyage exploring the New World, Columbus wrote in the ship's log about stopping in Trinidad and using their natural asphalt reserve to waterproof and caulk his ships.
squiggle Stone

The Grand Coulee Dam in Washington State required 17 million tons of aggregate in its construction.

The Denver International Airport outside of Denver, Colorado, required 5 million tons of aggregate in its construction.

There is enough concrete in the Sears Tower, Chicago, IL to pave 8 one-mile lanes of interstate highway. The tower has 110 stories, sits on two city blocks and rises one quarter mile (1,454 feet) above the ground.

The faces on Mount Rushmore and Stone Mountain's Confederate Memorial are carved into granite.

Birds eat small bits of crushed stone to help them digest the foods they eat.

In an underground coal mine, the walls of the tunnels or shafts are white, not black. They are usually covered with a white rock dust, usually powdered limestone, which settles coal dust.

Nature’s rust, Goethite, formed by weathering iron-bearing rocks, was sought by Native Indians for face paint.

The ancient Romans used pumice mixed with lime as a cementing material.

The Egyptian pyramids are made from limestone.

The first tool is believed to have been the "pebble tool" -- a fist-sized rock with a sharp edge.

Some animals use simple rocks to help them get at their food. Otters use rocks to break open clam shells. Some birds fly over eggs, dropping stones to break them open.

Australian aborigine people used quartz in a magical ceremony to make rain fall. They broke crystals of quartz into tiny bits that looked like raindrops, then poured showers of these "raindrops" over one another in hopes this would trick real rain into falling.