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
• Light & refractometer
a) Reflection
b) Refraction
c) Luster
d) Total internal reflection
e) What is brilliance ?
f) Dispersion & fire
g) Double refraction
h) Refractometer
i) Measuring of refractive index
• Light & polariscope
a) Polarized light
b) Polariscope
c) Use of polariscope
• Light & spectroscope
a) Emission & absorbtion
b) The spectroscope
c) Some important spectra
• Light & microscope
• Dicroism &the dichroscope
• The chelsea color filter
• Specific gravity
• Fluorescence
• Optical phenomena
Part C
• inclusions ( corundum , beryl , garnets , zoisite, opal , spinel,
zircon , topaz , chrysoberyl , feldspar ,spodumene , etc)
Part D – synthetics
• The production of synthetics
a) Introduction
b) Methods 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 E – Treated Gemstones
• Intro
• Thermal treatments
• Irradiation
• Staining
• Bleaching
• Coating
• Impregnation
• Fracture filling
• Laser drilling
• Doublet & triplets
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