Maybe they decompose quickly into a form that resembles typical rock crystal.

The boy opened his left hand and showed Alec a yellow rock crystal.

But with a second cube of rock crystal corresponding results were not obtained.

I'm using the rock crystal to point to the letters.

The green dwarf regarded us whimsically, sipping from his great flagon of rock crystal.

A rock crystal or quartz pebble is selected and examined.

The bust is painted limestone with plaster additions; the eye is inset rock crystal.

The same earth produces diamonds, rock crystal, and vermilion.

Now take out a little flask of rock crystal.

The presence of lithium in rock crystal has also been detected by Tegetmeier (Vied.

They're only made of rock crystal, and there are millions of rock crystals in the earth.

The vessel was smooth and transparent rock crystal.

It contained a small fragment of native rock crystal, half-fused upon a petrified bit of pine.

I am rather inclined to believe that we have penetrated into a cave of rock crystal!'

At New Year he had given Anne a present of silver forks with handles of rock crystal.

Behind it stood another gate, this one of rock crystal, magically cast in the days of Silvanos.