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ganister
gan·is·ter also gan·nis·ter G0037000 (găn′ĭ-stər)n.1. A fine-grained quartzite used to line refractory furnaces.2. A mixture of fire clay and ground quartz, used to line metallurgical furnaces.
[Origin unknown.]ganister (ˈɡænɪstə) or gannistern1. (Geological Science) a highly refractory siliceous sedimentary rock occurring beneath coal seams: used for lining furnaces2. (Metallurgy) a highly refractory siliceous sedimentary rock occurring beneath coal seams: used for lining furnaces3. (Metallurgy) a similar material synthesized from ground quartz and fireclay[C19: of unknown origin]gan•is•ter (ˈgæn ə stər)
n. a highly refractory, siliceous rock used to line furnaces. [1805–15; orig. uncertain] ganister
ganister[′gan·ə·stər] (materials) A fine mixture of quartz and fireclay which is used to line certain furnaces for metallurgical processes. (petrology) A fine, hard quartzose sandstone; used to make refractory silica brick to line furnace reactors. ganisterA product made by mixing ground quartz with a bonding material such as fireclay. |