Unit GEMMOLOGY
- Course
- Geosciences for risk and environment management
- Study-unit Code
- A002317
- Curriculum
- Geosciences for environmental sustainability
- Teacher
- Sabrina Nazzareni
- Teachers
-
- Sabrina Nazzareni
- Hours
- 42 ore - Sabrina Nazzareni
- CFU
- 6
- Course Regulation
- Coorte 2020
- Offered
- 2020/21
- Learning activities
- A scelta dello studente
- Area
- A scelta dello studente
- Academic discipline
- GEO/06
- Type of study-unit
- Opzionale (Optional)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- English
- Contents
- Basic principles of gemmology. Short introduction into geology of gemstone deposits. Gemstones fashioning and use in jewellery. Diamonds and coloured gemstones. Basics on the main techniques to identify and to compare gem materials, treatments and synthetics to distinguish between gemstones.
- Reference texts
- “Gemmology” P.G. Read Butterworth
- Educational objectives
- Students will acquire knowledge on:
Basic principles of gemmology
geology of gemstone deposits.
Gemstones fashioning and use in jewellery
Basics on the analytical techniques to identify natural, synthetics and treated gems - Prerequisites
- In order to be able to understand the subject of the course students are required to have basic knowledge of geology, mineralogy
- Teaching methods
- face-to-face Practical training
- Learning verification modality
- The exam consists of a written and pratical test with closed answer aiming to test the level of knowledge reached. Duration 1 hour.
Learning Objective: basic skills on basic gemmology, ability to identify different types of gems, basic expertise on analytical techniques used to study gems. - Extended program
- 1 Basic principles of gemmology: Definitions of gems, their beauty, rarity and durability, and aspects of colour and light. Principles of physical properties of gemstones. The value and price factors of gemstones. Examples Diamond and Tanzanite.
2 Short introduction into geology of gemstone deposits: The geology of gems, where they’re mined and ethics surrounding their extraction. The origin and formation of gemstones in different ore deposits.
3 Gemstones fashioning and use in jewellery: different types of cuts and facets with cabochons, beads and other forms. Gemstone treatments: heat, irradiation, oil and resin treatments.
4 Diamonds and coloured gemstones: Silica gems (varieties of quartz and chalcedony), feldspars (such as moonstone), organic gems (such as pearls, amber and coral). Mainstream gems including corundum (ruby and sapphire), diamond, beryl (including emerald, aquamarine and morganite), tourmaline, garnet (including tsavorite), spinel, zircon, tanzanite, jade, opal and numerous others including rare and lesser known gemstones.
5 Basics on the main techniques to identify and to compare gem materials, treatments and synthetics to distinguish between gemstones: x-rays diffraction, IR- Raman- and UV-spectroscopies, hand lens, refractometer, fluid inclusions observations.