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septarium
sep·tar·i·um S0273200 (sĕp-târ′ē-əm)n. pl. sep·tar·i·a (-ē-ə) An irregular polygonal system of calcite-filled cracks occurring in certain rock concretions.
[Latin saeptum, partition; see septum + -arium.]
sep·tar′i·an adj.septarium (sɛpˈtɛərɪəm) n, pl -ia (-ɪə) (Geological Science) a mass of mineral substance having cracks filled with another mineral, esp calcite[C18: from New Latin, from Latin septum] sepˈtarian adjseptarium
septarium: see concretionconcretion,
mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore spaces of the sediment, usually around a fossil or fossil fragment acting as a nucleus.
..... Click the link for more information. .septarium[sep′tar·ē·əm] (geology) A large (32-36 inches or 80-90 centimeters in diameter), spheroidal concretion, usually composed of argillaceous carbonate, characterized by internal cracking into irregular polygonal blocks that become cemented together by crystalline minerals. Also known as beetle stone; septarian boulder; septarian nodule; turtle stone. MedicalSeeconcretion |