diatomitt

Diatomitt is a term used in speculative geology and fiction to denote a siliceous sedimentary material derived from diatoms. It is not an officially recognized mineral in contemporary geology, but is described in educational simulations as a diatom-rich form of silica with a distinctive porous microstructure.

Composition and formation: Diatomitt is described as primarily composed of silica (SiO2) from the siliceous frustules of diatoms, often with some preserved organic material and minor trace minerals such as iron or calcium. It is imagined to form where diatom blooms proliferate in marine or freshwater environments, followed by burial, compaction, and diagenetic cementation that creates a porous, rock-like substance.

Physical properties: In these hypothetical accounts, diatomitt exhibits high porosity and surface area, low bulk density, and a friable but cohesive texture when compacted. It is typically considered relatively soft (Mohs hardness around 3–4) and chemically inert, with a tendency to adsorb pollutants and organic compounds. Its porosity gives it low thermal conductivity and potential for use in filtration or insulation in speculative applications.

Occurrence: Diatomitt is described as occurring in sedimentary basins where diatom accumulation is substantial, including freshwater lakes and coastal marine environments. In fictional settings, it may be associated with deltaic sequences, volcanic ash layers, or regions with long diatom-rich deposition histories.

Uses and research: In speculative scenarios, diatomitt is proposed as a filtration medium due to its porous network, a lightweight aggregate for composites, or an insulating material for energy-efficient construction. Real-world parallels are drawn to diatomite (diatomaceous earth), while diatomitt remains a hypothetical or fictional construct.

See also: diatomite, diatoms, silica, sedimentary rocks.