Geology Reference
In-Depth Information
Figure 6-8:
The
sheet silicate
structure.
Framework:
A
framework
silicate structure is three-dimensional. Each oxygen atom
of the tetrahedral is shared with another tetrahedral, as illustrated in Figure 6-9.
An example of a mineral with framework silicate structure is quartz.
Figure 6-9:
The
framework silicate
structure.
Ring:
When tetrahedrals share two oxygen atoms in groups of three, four, five, or
six, they may be arranged in a circle or
ring
structure as illustrated in Figure 6-10.
The mineral kaolinite has ring structure.
Figure 6-10:
The
ring silicate struc-
ture.
