• Home
• Taxonomy
• Map search
• Palaentology-search
• Stratigraphy
• Minerals
• • Minerals
  • • Elements
    • Sulfides
    • Halides
    • Oxides and Hydroxide
    • Nitrates, Carbonates
    • Borates
    • Sulfates
    • Phosphates
    • Silicates
    • Organolites
  • Rocks
• Links
• References
• Contacts
• Site map

      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.

vltavín

No. of sample:	g8286
Mineral:	vltavín, MIN
Description:	127 kusů
Localization:	Koroseky /Vrábče/, o. Č. Budějovice,
Origin:	coll.Hrabě,1973
Author:
Comment:	nákup od B. Hraběte, 4.2.1977 vyňato z položky 10 kusů, chybí 2 ks 5.5. 1989 - Šarič

Previous

Next