World Gem Foundation
Basic Gemmology

Basic Gemmology Course

Prerequisites

None

Lessons

Ten

Course Objective

You will learn about the various instruments used to identify gemstones, and the scientific principles they are based upon.

Topics Covered Include

The chemical nature of gemstones, physical and optical properties, basic crystallography, the absorption of light, the spectroscope, refraction and reflection, the refractometer, optical character and sign, dispersion, reflectivity meters, polarized light, the polariscope, pleochroism, the dichroscope, colour filters, specific gravity, luminescence, magnification and thermal conductivity.