Unit GEMMOLOGY

Course
Geosciences for risk and environment management
Study-unit Code
A002317
Location
PERUGIA
Curriculum
Geosciences for environmental sustainability
Teacher
Sabrina Nazzareni
Teachers
  • Sabrina Nazzareni
Hours
  • 42 ore - Sabrina Nazzareni
CFU
6
Course Regulation
Coorte 2022
Offered
2022/23
Learning activities
Affine/integrativa
Area
Attività formative affini o integrative
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.¿formazione delle gemme in differenti depositi.¿4. moda delle gemme e uso in gioielleria: diversi tipi di tagli e¿sfaccettature con cabochons, perle e altre forme. trattamento delle¿gemme: riscaldamento, irradiazione trattamenti con oli e resine¿5. diamanti e gemme colorate: gemme di silicio (quarzo e calcedonio),¿feldspati (pietra di luna), gemme organiche (perle, ambre e coralli).¿mainstream gemme corindone (rubini e zaffiri) diamanti¿
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