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 exhibitsvltavín, 31ks - 113g g7900živec, jeden kus g7992 vltavín, g8013 beryl, jeden kus g7950 živec, jeden kus g7971 mikroklin, jeden kus g7972 serpentinit, jeden kus g8081 lepidokrokit - nejmladší výpň rudních žil u -lož., jeden kus g8339 cronstedtit s pyritem, dialogitem a křemenem, jeden kus g8348 rodonit s pyritem,pyrhotinem na erlanovém rohovci, jeden kus g8354 neotokit s pyritem na puklině prachovce, jeden kus /vrtné jádro/ g8390 neotokit ?, jeden kus g8392 steatit z poruchové zóny, dva kusy g8295 mastek, chlorit z hadce, jeden kus g8311 chalcedon na dialogitové žilovině, jeden kus g8389 egeran /vesuvian/, jeden kus /9x7cm/ g8435 beryl, jeden kus /11x7cm/ g8438 muskovit, jeden kus g8364 vltavín, 60 kusů g8365 natrolit, jeden kus /8x6cm/ g8413
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Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]