: Objective One of the aims of this course is to teach students to become familiar with and to identify a number of gemstones by conducting a number of specific physical tests (measurement of refraction indexes, density, observation of optical absorption spectrums, etc.).Another aim is to help students to understand what makes a specific mineral suitable for gemmological use and why gemstones are extremely rare in nature, which therefore requires investigating their deposits, history and economic aspects.
- What is a precious stone, a gemstone?
- The most important gem minerals, their history and deposits.
- Notions of gemmology.
- Classification of precious stones.
- Observation and identification of gem crystals, determination of elementary physical features such as hardness, volumic mass and colour.
- Manipulation of crystalline optics: birefringence and pleochroism.
- Regulations. The market for precious stones.
Last Modification :
Saturday 11 December 2010