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septarium

Syllabification: sep·tar·i·um
Pronunciation: /ˌsepˈterēəm
 
/

Definition of septarium in English:

noun (plural septaria /-ˈte(ə)rēə/)

Geology
A concretionary nodule, typically of ironstone, having radial cracks filled with calcite or another mineral.
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.

Origin

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

Derivatives

septarian

1
Pronunciation: /-ˈte(ə)rēən/
adjective
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.

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