What is the basic concept of crystallography?
A crystal structure is a unique arrangement of atoms, molecules or ions in a crystal.
It is composed of a motif, which is a set of atoms arranged in a particular way, and a lattice.
Motifs are located upon the points of lattice, which is an array of points repeating periodically in three dimensions.What is the introduction of crystallography in geology?
Traditionally, crystallography is the study of crystals and describing them according to geometrical observations.
This involves measurement of the crystal faces in relation to their imaginary crystal axes (using a goniometer) and symmetry.What is the basic principle of crystallography?
X-ray crystallography is a tool used for determining the atomic and molecular structure of a crystal.
The underlying principle is that the crystalline atoms cause a beam of X-rays to diffract into many specific directions (Fig. 2.10).- crystallography, branch of science that deals with discerning the arrangement and bonding of atoms in crystalline solids and with the geometric structure of crystal lattices.
Classically, the optical properties of crystals were of value in mineralogy and chemistry for the identification of substances.
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