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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

orthit, jeden kus g11669
pyroxen, jeden kus g11673
vesuvian, jeden kus g11674
vesuvian, jeden kus g11675
axinit, jeden kus g11685
kyanit, jeden kus g11686
chalcedon, jeden kus g11711
chalcedon, jeden kus g11719
kočičí oko, jeden kus g11723
skolecit, jeden kus g11830
sfen, jeden kus g11832
thomsonit, jeden kus g11834
thomsonit, jeden kus g11836
"spatkrystalle" = živec, jeden kus g11838
chiastolit, jeden kus g11851
pyknit /topaz/, jeden kus g11854
sillimanit, jeden kus g11855
staurolit, jeden kus g11922
sodalit, tři kusy, a-c g11924
olivín, jeden kus g11780


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