Origin of septarium
OTHER WORDS FROM septariumsep·tar·i·an, adjectivesep·tar·i·ate [sep-tair-ee-it], /sɛpˈtɛər i ɪt/, adjective
How to use septarium in a sentence
Another type of concretion, very abundant in many clays and shales, is the “septarian nodule.”
Many shales contain great numbers of ovoid or rounded septarian nodules of clay ironstone.
A little above the oyster bed is a band of hard-bluish septarian limestone.The Geological Story of the Isle of Wight|J. Cecil Hughes