Definition of septarium in English:


Syllabification: sep·tar·i·um
Pronunciation: /sepˈte(ə)rēəm

noun (plural septaria /-ˈte(ə)rēə/)

  • A concretionary nodule, typically of ironstone, having radial cracks filled with calcite or another mineral.
    More example sentences
    • Phosphatic nodules, large dolostone septaria, iron sulfide nodules, and crystal-lined vugs are present.
    • Iron oxide nodules are commonly septaria, exhibiting networks of thin veins of coarsely granular calcite.
    • Large dolostone septaria and iron sulfide nodules occur in the Late Devonian Huron Shale.



Pronunciation: /-ˈte(ə)rēən/
More example sentences
  • Consequently, they are only readily detected in septarian cracks and vugs that show an incomplete paragenesis.
  • These are found rarely in large septarian concretions in the Huron Shale in north-central Ohio near Milan, in Huron County.
  • The areas along fault planes were subjected to a shearing action that produced a pattern of fracturing that is different from the desiccation cracking of a normal septarian concretion.


late 18th century: modern Latin, from Latin septum 'enclosure'.

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