COLOR GEM STONES IDENTIFICATION
COURSE - III
- Part A
- • What is gemology
- • What are gems
- • Nature of minerals ( crystallization)
- • Polishing of gemstones
- a) Cutting
- b) Scintillation
- c) Tumbled stones
- d) Various cutting styles
- • Light & color
- Part B
- • Inclusions ( corundum , beryl , garnets , zoisite, opal , spinel, zircon , topaz, chrysoberyl, feldspar, spodumene etc)
- Part C - Synthetics
- • The production of synthetics
- a) Introduction
- b) Method to produce synthetic gemstones ( flame fusion, pulling floating zone , skull melting, flux, hydrothermal
- • Synthetics from other process (ceremic, sublimation, etc)
- • Identification of synthetics
- • More of practical studies
- Part D - Treated Gemstones
- • Intro
- • Thermal treatments
- • Irradiation
- • Staining
- • Bleaching
- • Coating
- • Impregnation
- • Fracture filling
- • Laser drilling
- • Doublet & triplets