"Many people help their friends clear the table and break a piece of crystal," she said.

Eye of Crystal, however, was past doing or teaching anything.

He'd even had the director come down to see some of the crystals.

After that it is only a dead piece of blue crystal, without light.

You simply found her, like a bit of crystal in your path.

"We must follow up every potential source of black crystal."

The shape of the crystals could still be made out.

But it was moving inside the structure of the crystal rather than across its surface.

Finally, they reached the area of the great crystal, the station stop to Hell.

But we don't think of crystals as being alive at all.