It is important that these facets should crystallographically
The nonlinear decrease in permeability with clay loading, the apparent aspect ratio, and the observed crystallographically
regular layer stacking order with a monolayer of polymer intercalated between the layers, are all consistent with a possible self-similar clay aggregation mechanism, in which the face-to-face associated layers are slipped in a staircaselike fashion.
In addition, it is crystallographically
impossible for gold to form iron-cross twins.
3] (37,39), in which Bi is located in two crystallographically
independent positions of the monoclinic space group 12/m.
The sides (cleavage planes) are the same crystallographically
in terms of the spacings of atoms of calcium and molecules of carbonate; they are referred to as the (1 0 4) family of planes.
And while NMR shows no signs of supplanting diffraction methods for solid structural analysis, Harris showed that it is an excellent complementary method in some crystallographically
difficult systems, such as SiAlON and boron carbides.
There are two crystallographically
independentsodium centers in the crystal structure.
parallel zones seen in some loose realgar crystals found in 2000 consist of pararealgar.
In an intercalated nanocomposite the insertion of polymer into the clay structure occurs in a crystallographically
regular fashion and few molecular layers of polymer typically occupy the gallery region.
The material has 13 crystallographically
unique tetrahedral atoms, as well as 22 oxygen atoms, and thus is one of the most structurally complex zeolitic materials reported to date.
, the a and b axes lie in the plane of the aragonitic tablets, with the c axis uniformly perpendicular to the surface.
The Benitoite Gem mine (also known as the Benitoite mine, the Dallas Gem mine or simply the Gem mine) has been known for 100 years as the source of a crystallographically
unique and aesthetic mineral and gem species, benitoite.