ELECTRICAL CHARACTERISTICS OF MINERALS AND THEIR APPLICATION IN ELECTRICAL ENGINEERING AND ELECTRONI C MATERIALS

The relation between the electrical conductivity (isolating property), dielectric property of some natural minerals and the mineral's composition, texture, impurity constituents, multiple-phase structure, lattice defect and lattice distortion as well as ambient temperature and atmospheric moisture were briefly described in the paper.Numerous examples have been illustrated that the low cost functional electrical materials meeting market demands can be prepared by selecting suitable processing technologies for purifications and surface modification.