PEARLSTONE


Meaning of PEARLSTONE in English

( n. )

A glassy volcanic rock of a grayish color and pearly luster, often having a spherulitic concretionary structure due to the curved cracks produced by contraction in cooling. See Illust. under Perlitic.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.