One of the mysteries of the English language finally explained.
A close-grained, hard siliceous rock, or a similar synthetic product, used especially for lining furnaces.
- ‘Ganister is a rock that when ground and mixed with fire-clay has a very high tolerance to heat.’
- ‘According to Pete Clarke, the tour will then explore the ganister loading siding between Three Springs and Saltillo and the path of the now-dismantled spur truck to the former North American Refractories Company quarry above Three Springs.’
- ‘The other refractory plants had to have their ganister hauled in by rail.’
- ‘The lip and rim of the ladles are also best lined with ganister.’
Early 19th century: of unknown origin.
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