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 exhibitsserpentinit, jeden kus g6366lepidolit, dva kusy g6492 blokový živec, jeden kus g6510 blokový živec z pegmatitu, jeden kus g6497 serpentinit, jeden kus g7388 siliciofit, jeden kus g7168 mastek, hadec, dva kusy g7175 mastek, lož. ni rud, jeden kus g7273 mastek, jeden kus g7277 serpentin - granátický, jeden kus g7282 serpentin - podložní, jeden kus g7283 serpentin s granátem, jeden kus g7285 thomsonit, jeden kus (9x 6cm) g6682 natrolit, jeden kus 5x4cm g6826 distén, jeden kus g7030 muskovit, jeden kus g7431 beryl, dva kusy g7432 beryl, jeden kus g7437 andalusit s křemenem, dva kusy g7549 cordierit, jeden kus g7587 |