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 exhibitsthomsonit, jeden kus /12x10cm/ g9028chrysokol, jeden kus /12x8cm/ g9030 heulandit, jeden kus /8x7cm/ g8755 heulandit, jeden kus /10x8cm/ g8756 pektolit, jeden kus /12x10cm/ g8764 analcim, jeden kus /10x8cm/ g8765 chrysolit /olivín/, jeden kus /7x7cm/ g8766 chrysolit /olivín/, 4 kusy /úlomky 1 - 4 cm/ g8767 desmín, jeden kus /11x7cm/ g8770 heulandit, jeden kus /12x6cm/ g8771 pektolit, jeden kus g8774 vesuvian, jeden kus /7x6cm/ g8659 granát, jeden kus /7x6cm/ g8660 hessonit, devět kusů /5x5 - 3x3 cm/ g8662 vesuvian, jeden kus /9x8cm/ g8663 epidot, jeden kus /8x8cm/ g8831 olivín, jeden kus /9x6cm/ g8775 topaz, jeden kus /9x8cm/ g8730 almandin, jeden kus /9x8cm/ g8800 almandin, jeden kus /11x6cm/ g8801 |