TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PEARLSTONE [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-09-21

English

Subject field(s)
  • Mineralogy
DEF

[A] colorless, grayish, bluish, greenish, reddish, or brownish volcanic glass having the composition of rhyolite and generally a higher water content (less than 4%) than obsidian [and] often showing numerous concentric cracks showing onionlike partings and imparting a pearly luster ...

CONT

Perlite ... can be expanded to many times its original volume by crushing and heating under pressure. Release of the pressure causes expansion when the water in the rock turns to steam.

French

Domaine(s)
  • Minéralogie
DEF

Rhyolite vitreuse riche en eau, à texture perlitique.

CONT

[...] les perlites sont des roches volcaniques riches en eau qui, une fois chauffées, gonflent et deviennent légères et isolantes.

Spanish

Campo(s) temático(s)
  • Mineralogía
Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: