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

beryl, jeden kus /8x7cm/ g8414
spodumen, jeden kus /10x6cm/ g8416
augit, jeden kus /10x7cm/ g8417
beryl, jeden kus - krystal /10x4cm/ g8421
andalusit, jeden kus /9x7cm/ g8422
egeran /vesuvian/, jeden kus /9x7cm/ g8423
phillipsit, jeden kus /8x6cm/ g8478
phillipsit, jeden kus /10x8cm/ g8482
beryl, jeden kus /13x8cm/ g8485
beryl, jeden kus /7x6cm/ g8490
neotokit s pyritem na kyzáku, jeden kus g8395
granát /spessartin/, jeden kus /7x5cm/ g8464
thomsonit, jeden kus /11x8xcm/ g8468
cinvaldit, jeden kus /9x6cm/ g8523
cinvaldit, jeden kus /10x6cm/ g8526
pyknit /topaz/, jeden kus /10x4cm/ g8535
turmalín, jeden kus /10x7cm/ g8546
amfibol, jeden kus /6x3,5cm/ g8447
muskovit, jeden kus /12x8cm/ g8448
granát /almandin, spessartin/, jeden kus g8449

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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]