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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

vltavín, deset kusů g4881
vltavín, dvacet devět kusů g4882
vltavín, šest kusů g4883
vltavín, deset kusů g4884
azbest v pikritu, tři kusy g4906
azbest, jeden kus g5127
natrolit, jeden kus /6x5cm/ g5056
turmalin v živci /z pegmatitu/, jeden kus g5060
vltavín, dva kusy g5096
živec, jeden kus g5102
biotit, jeden kus g5109
oligoklas, jeden kus g5110
azbest, jeden kus g5114
azbest, jeden kus g5121
azbest v serpentinitu, jeden kus g5123
živec, jeden kus g5126
mastek, dva kusy g5154
azbest, jeden kus g5155
živec písmenkový z pegmatit.ž., jeden kus g5166
natrolit, jeden kus (průměr 5cm) g5167


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