Perlite - What does it mean?
perlite | |
(mineralogy) An amorphous volcanic glass formed by the hydration of obsidian.
The lightweight insulating material and aggregate resulting from expanding perlite glass by heat.
*{{quote-book, year=1928, author=Lawrence R. Bourne
, title=Well Tackled!
, chapter=4
perlite
English
Noun
(wikipedia perlite) (en noun)citation, passage=Technical terms like ferrite, perlite , graphite, and hardenite were bandied to and fro, and when Paget glibly brought out such a rare exotic as ferro-molybdenum, Benson forgot that he was a master ship-builder, […]}}