Ball and Stick Stick Spacefill Polyhedral
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Vermiculite, Mg3(Al,Si)4O10(OH)2 · 4H2O, has a monoclinic crystal system with a platy habit. It is an expanding clay.
Highlighting FeaturesTetrahedrally-coordinated silicon (Si) atoms Tetrahedrally-coordinated aluminum (Al) atoms Octahedrally-coordinated magnesium (Mg) atoms Oxygen (O) atoms Sites of charge in the mineral structure Charge-balancing (exchangeable) cations Tetrahedral sheets Octahedral sheets Single unit cell All atoms
Shirozu, H., and S.W. Bailey. 1966. Crystal structure of a two-layer Mg-vermiculite. American Mineralogist. 51:1124-1143.