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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

muskovit, jeden kus g1713
amfibol jílovského pásma, jeden kus g1751
garnierit, jeden kus g1958
garnierit v hadci, jeden kus g1959
berthierit, jeden kus g1966
cinvaldit, dva kusy g2070
muskovit, dva kusy g2978
berthierit, jeden kus g1632
muskovit, jeden kus g1636
xenol. opal. pyrop. peridotitu, jeden kus g1772
vltavín, osmnáct kusů g3916
cinvaldit, čtyři kusy g3661
albit, tři kusy g3687
žilná výplň, čtyři kusy g3688
cinvaldit, křemen, jeden kus g3689
žilná výplň, jeden kus g3692
pyknit /topaz/, jeden kus g3693
vějířovitě stébelnatý pyknit, jeden kus g3700
živec, jeden kus g3702
žilná výplň, jeden kus g3843


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