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单词 heulandite
释义 heulandite
 /hyooh"leuhn duyt'/,  n.  
 a white or transparent, colorless mineral of the zeolite family, hydrous calcium aluminum silicate, CaAl2Si7O18·6H2O, occurring in basic volcanic rocks in the form of crystals with a pearly luster.
 [1815-25; named after Henry Heuland, 19th-century English mineral collector; see -ITE1]
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