Fibrous to bladed calcite, composed of crystals that exhibit evidence of lattice curvature, apparently replace foraminiferal tests and extend into adjacent former pore-space. It forms by syntaxial overgrowth upon original crystals of the test which displayed progressive and systematic changes in lattice orientation. Adjacent crystals in the test possessed near-identical lattice orientations such that these crystals together with their overgrowths behave as larger crystalline units.

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