It is generally described as white crystals with a slight odor.

But it is also a history of the world as seen through those white crystals.

He sprinkled some into the hot water and watched the white crystals dissolve.

One man scraped the green and white crystals from a battery connection.

The white crystal hung around my neck, its weight a reminder of poison.

Preserved in each white crystal is a little of the local air, the water and the earth.

Or maybe because of it, she mused, looking at a white crystal on her glove.

At the centre of the stone was a small white crystal.

He put his other hand over mine, the one that held the white crystal.

Only the fact that white crystal had such a variety of potentially lucrative uses kept her going.