COURSE UNIT TITLE

: GEMOLOGICAL EXAMINATION TECHNIQUES AND EQUIPMENT

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
NBG 5008 GEMOLOGICAL EXAMINATION TECHNIQUES AND EQUIPMENT ELECTIVE 2 0 0 5

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR MURAT HATIPOĞLU

Offered to

NATURAL BUILDING STONES AND GEMSTONES

Course Objective

Identification and called of a gemstone (rough, polished, or mounted) on the base of the scientific criteria.

Learning Outcomes of the Course Unit

1   Able to have knowledge of gemmological investigation methods and equipments.
2   Able to make laboratory tests on gemmological investigation subjects.
3   Able to use gemmological investigation methods and equipments.
4   Able to evaluate results of analysis.
5   Able to grade gemmological materials and products according to the test results.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Definition of the terms gemmological and mineralogical . Mineralogical examination techniques and their uses in gemmological grading.
2 Definition of the terms gemmological and mineralogical . Mineralogical examination techniques and their uses in gemmological grading.
3 Basics of examination of transparent, translucent and opaque types of gemstones. Definition of light. Reflection and refraction.
4 Optic characters in transparent and translucent gems and optic signs (indicatrixes). Refraction index.
5 Standard refractometer equipment (running principles, direct reading techniques (spot technique, white light reading, day light reading), maintenance and cleaning). Determining of refraction index, double refraction, optic character, dispersion and possible crystal system of transparent and translucent gems with the use of refractometer.
6 Immersion technique (determining the approximate refraction index of transparent and translucent cut gems, displaying immersions). Determining refractive index with microscope. Measuring the refractive index of gems with high refractive index (diamond and imitations). Dispersion, Measuring dispersion with spectrometer table.
7 Mid term exam
8 Photoluminescence (defining fluorescence and phosphorescence and using in gemmological examination). Gemmological examination with the help of ultraviolet rays and x-rays (the colors they show and transparency). Color filters and fluorescence. Chelsea filter, its characteristics and uses. Cross filter technique and filters.
9 Spectroscope equipment (characteristics and uses). Methods of reflection besides transmission. Optic absorption spectrums (graphs, picks and band readings) uses in gemmological examination and reading. Activator atoms causing or preventing absorption.
10 Determining specific weight (hydrostatic Wesphal scale - heavy liquids immersion techniques).
11 Dichroscope device (specifications and uses). Using dichroism and pleochroism in gemmological examination.
12 Loupe and magnifying glasses (properties and uses in gemmological examination). Microscopes (types, parts, uses). Types of lights used in gemmological microscopes. Examining inclusions, special inner structures and cuts under different types of light with gemmological microscope. Immersionoscope device (specs, uses, immersion cell and fluids).
13 Gemmological examination techniques with immersionoscope.Portable gemmological laboratory and its using.
14 Presentation of research homework.

Recomended or Required Reading

Main Textbook:
1. Murat HATÎPOĞLU. Gemmology (Essentials of Gemmological Grading).
Suplementary Books:
1. Uchard T. LIDDICOAT. Handbook of Gem Identification.
2. Comelius S. HURLBUT & George S. SWITZER. Gemology.
3. P. G. READ. Dictionary of Gemmology.
4. Robert WEBSTER. Gemmologist' Compendium.

Planned Learning Activities and Teaching Methods

1.Teaching
2.To be made application and research homework

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.30 +ASG * 0.20 +FIN * 0.50
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.30 + ASG * 0.20 + RST * 0.50


Further Notes About Assessment Methods

1.Teoritical Mid Exam %30 (CLO1, CLO2, CLO3, CLO4)
2.Presentation of Assignment and Research Homework %20 (CLO5)
3.Final Exam %60 (CLO1, CLO2, CLO3, CLO4)

Assessment Criteria

It will be evaluated theoretical mid exam, presentation of assignment and research homework and final exam as well as 5 course-learning outcomes.

Language of Instruction

Turkish

Course Policies and Rules

All students must attend to the conducted courses with at least 80%. During the course and in the exams, all kind of making a copy are evaluated comprising a discipline crime.

Contact Details for the Lecturer(s)

E-mail: murat.hatipoglu@deu.edu.tr
Tel: +90-232-3012564

Office Hours

Working hours in week that the faculty staff has not a course period

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 12 2 24
Preparations before/after weekly lectures 10 2 20
Preparation for midterm exam 1 4 4
Preparation for final exam 1 5 5
Preparing presentations 1 70 70
Final 1 1 1
Midterm 1 1 1
TOTAL WORKLOAD (hours) 125

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11PO.12
LO.132243342
LO.222122
LO.314251
LO.422441
LO.52222452

CONTACT INFORMATION
Dokuz Eylül Üniversitesi Cumhuriyet Bulvarı No: 144 35210 Alsancak / İZMİR
Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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