ganisters

/ˈɡænɪstərz/
noun
  1. Plural of ganister; hard, fine-grained siliceous rocks used for making refractory bricks and furnace linings.
    • Different ganisters have varying silica content.
    • Geologists classify ganisters based on their grain size and purity.
    • The quarry supplies ganisters to several brick manufacturers.
Synonyms
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