Also found in: Thesaurus, Encyclopedia, Wikipedia.
A colorless to white lustrous crystalline mineral, Na2B4O7·4H2O, that is a major source of ore of boron.
[After Kern, a county of southern California.]
(Minerals) a light soft colourless or white mineral consisting of a hydrated sodium borate in monoclinic crystalline form: an important source of borax and other boron compounds. Formula: Na2B4O7.4H2O
[C20: from Kern County, California, where it was found + -ite1]
a mineral, hydrated sodium borate, Na2B4O7∙4H2O, occurring in colorless crystals: the principal source of boron.
[1925–30; after Kern County, Calif.; see -ite1]
Switch to new thesaurus
|Noun||1.||kernite - a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron|
atomic number 5, boron, B - a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition