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Silicates

      9th class - Silicates This group of minerals is extremely large. The fundamental building block of silicates is the SiO4 tetrahedron, and silicate structures are classified according to the degree of polymerization by corner-sharing of the tetrahedra:
Nesosilicates - have insular SiO4 tetrahedra.
Sorosilicates - have cluster structures with two, or rarely more, corner- sharing tetrahedra.
Cyclosilicates - have tetrahedra connected into rings.
Inosilicates - have tetrahedra in chains of infinite length.
Phyllosilicates - have rings of tetrahedra linked into continuous sheets.
Tektosilicates - have tetrahedra linked into a 3-dimensional framework.


List of exhibits

celestin, jeden kus g11885
beryl - růžový, jeden kus g11887
diopsid, jeden kus g11891
beryl (rubellit), jeden kus g11892
langbanit, rhodonit, jeden kus g11893
olivín, tři kusy, a,b,c g11906
stilbit, krystal v basaltu, jeden kus g11908
pirkosmin, jeden kus g10940
zoisit, jeden kus g288
berthierit, jeden kus g592


Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]