The Objective of this programme is to impart knowledge of Gemmology (scientific study of gems) to the students and the people already associated with or desirous of entering in the field of gem industry as importers, manufacturers. As the programme covers all the aspects of gemstone identification, it is useful for traders, dealers, dealers artisans and comman people. It offers wide scope to those seeking job in the gem world & is useful to the hobbyists
Monday to Friday only
Either of the following (depending on the availability
& as decided by the management of the institute)
10.30 - 13.30 or 14.00
||What You Learn
Introduction: Definition of gemmology, Basic qualities, Chemical composition, weights and measure, Lustre, Sheen; Opalescence, Adularescenec, Iridescence, Asterism, Chatoyancy.
Crystallography: Nature of crystals, crystalline and non crystalline materials, Forms, Habits, Seven crystal systems, Twinning
Physical Properties: Hardness, Cleavage, Specific Gravity (heavy liquid and hydrostatic Method), Fracture
Optics: Nature of light, visible spectrum, Light Reflection, Refraction, total internal reflection, Single and double refraction, Dispersion, Polarization, Refractive index and its determination by refractometer, Pleochroism, interference,. Jeweller’s Lens, Microscope, Spectroscopes, Dichroscope, Chelsea colour filter, Ultraviolet light and x-rays, Polariscope.
The varieties and colours species, chemical composition and crystal system, physical properties, special characteristics and identification of the gemstones. Thermal Conductivity and Thermal probes. Synthesis & enhancement in gemstones.
An overview of Advance Technology used in Diamond identification (like FTIR, UV-VIS, Diamond View, Diamond Sure etc)