noun hil·gard·ite \ˈhilˌgärˌdīt, -gər-\

Definition of hilgardite



  1. :  a mineral Ca8(B6O11)3Cl4.4H2O consisting of hydrous chloride and borate of calcium occurring in colorless monoclinic domatic crystals

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Origin and Etymology of hilgardite

Eugene W. Hilgard †1916 American geologist + English -ite

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