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heulandite in British English
(ˈhjuːlənˌdaɪt)
noun
a white, grey, red, or brown zeolite mineral that consists essentially of hydrated calcium aluminium silicate in the form of elongated tabular crystals. Formula: CaAl2Si7O18.6H2O
Word origin
C19: named after H. Heuland, 19th-century English mineral collector; see -ite1heulandite in American English
(ˈhjulənˌdaɪt)
noun
a semihard, lightweight, monoclinic zeolite, (Na,Ca)4-6Al6(Al,Si)4Si26O72·24H2O
Word origin
named (1822) after Henry Heuland, Eng mineralogistImage ofheulandite
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