a glassy substance, usually tube-shaped, formed by fusion when sand, rock, etc. are struck by lightning
Origin of fulguriteClassical Latin fulgur (see fulgurate) + -ite
A slender, usually tubular body of glassy rock produced by lightning striking and then fusing dry sandy soil.
Origin of fulguriteLatin fulgur, lightning; see fulgurate + –ite1.
From Latin fulgur.