Aluminosilicate Clays

Question 0

Structure:

Answer 0

Repeating units of silica tetrahedra (SiO4 ^4-) in sheets - tetrahedra sheets.

Question 1

Alumina silicate clays are

Answer 1

Clay minerals of sedimentary rocks.

Question 2

Octahedral sheets:

Answer 2

Made from aluminium (Al^3+), each surrounded by 6 oxide (OH-) ions.

Question 3

Formed by…

Answer 3

Partial decomp of aluminosilicate minerals, Mica, feldspar and amphibole.

Question 4

Clays distinctive properties are from

Answer 4

The arrangement of the tetrahedra sheets and octahedral sheets.

Question 5

Tetrahedra sheet : octahedral sheet

Answer 5

1:1 stacked sheet

Question 6

Octa sheet : tetra sheet : octa sheet

Answer 6

2:1 stacked sheet.

Question 7

The inter layer space between sheets in held by

Answer 7

Hydrogen bonds