Definition of crystals:
Usage examples of crystals:
Nearer the granite the schist often contains crystals of hornblende, which are even met with in some places for a distance of several hundred yards from the junction; and this black hornblende is so abundant that eminent geologists, when passing through the country, have confounded it with the ancient hornblende- schist, subordinate to the great gneiss formation of Norway.- "The Student's Elements of Geology", Sir Charles Lyell.
- "The Best Short Stories of 1921 and the Yearbook of the American Short Story", Various.
- "The Magic Soap Bubble", David Cory.