a highly refractory, siliceous rock used to line furnaces.
a synthetic product similar to this rock, made by mixing ground quartz with a bonding material.
Origin of ganister
First recorded in 1805–15; origin uncertain
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ganister
Historical Examples of ganister
For furnace linings, the quartzite or ganister must be exceptionally pure.
The principal uses of sandstone are for building stone, crushed stone, and ganister (for silica brick and furnace-linings).
These clays are highly silicious and in composition are intermediate between the Yorkshire fireclays and ganister.
After covering all the exposed steel surfaces with ganister, the plates are put in a gas furnace and heated to a welding heat.
Lower: Flaggy hard sandstones (ganister), shales and thin coal seams.
British Dictionary definitions for ganister
a highly refractory siliceous sedimentary rock occurring beneath coal seams: used for lining furnaces
a similar material synthesized from ground quartz and fireclay
Word Origin for ganister
C19: of unknown origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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