Fukalite and Its Cement Friends

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Abstract

Calcium silicate hydrates (CSH) are widespread in nature and are of particular interest for cement production. Crystalchemical variation of CSH-group representatives results from various Ca/Si ratio and topologically different structural fragments. Ca-polyhedra (octahedra, and 7- or 8-polyhedra) сan be combined in columns and layers of different types and linking Si-radicals vary from isolated monomers, single dimers, trimers, and hexamers to linear and layer groups. We have conducted X-ray analyses of cement hydrosilicate fukalite and compare its structure with CSH-group minerals, composed of Si-tetrahedra linear and layer fragments.

About the authors

R. K Rastsvetaeva

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, RAS

Email: rast.crys@gmail.com
Moscow, Russia

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