Essays about: "ädelstenar"

Found 3 essays containing the word ädelstenar.

1. 1. APPRAISAL OF DIAMONDS AND GEMSTONES : How to facilitate the separation of natural and synthetic gemstones

   University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik och samhälle

   Author : Anna Sahlin; [2018]
   Keywords : Desig; designprocess; teknisk design; civilingenjör; produkt design; produkt framtagning;

   Abstract : One major problem in the gemstone industry is that it is difficult to determine whether if a gemstone is natural or synthetic. Natural gemstones are found in the interior of the earth while the synthetic gems are created by people. READ MORE

3. 2. Identification Methods of Sri Lankan Corundum in Comparison to Other Common Gemstones

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Axel Kilbo Pehrson; [2017]
   Keywords : identification; Sri Lanka; corundum; gemstones; identifikation; Sri Lanka; Korund; ädelstenar;

   Abstract : Sri Lanka is one of the leading countries in export of high quality corundum (Al2O3) gemstones due to the Precambrian rocks geological background. Combined highgrade metamorphic silicates and carbonate rocks makes perfect conditions for crystallization of this mineral. READ MORE

4. 3. The reliability of the first generation infrared refractometers

   University essay from Lunds universitet/Geologiska institutionen

   Author : Fernando Patricio Acevedo Suez; [2013]
   Keywords : utvärdering; refraktometer; infraröd; cut; temperature; evaluation; infrared; refractometer; temperatur; slipning; geology; Earth and Environmental Sciences;

   Abstract : One of the most valuable instruments for gem identification is the refractometer. The standard refractometer is based on visible light, but a first generation infrared refractometer is out on the market. READ MORE