Essays about: "gemstones"

Found 4 essays containing the word gemstones.

  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. Development of a wear index and its methodology related to mineral processing - Part I

    University essay from Lunds universitet/Industriell Produktion

    Author : André Larsson; [2016]
    Keywords : Nanoindentation; Berkovich indenter; wear; surface hardness; rock; minerals; manganese steel; mining; comminution.; Technology and Engineering;

    Abstract : This Master Thesis was performed for Sandvik SRP in collaboration with the Institution for Industrial Production Faculty of Engineering at Lund University. Tool wear is one of the main cost drivers in the mining industry. READ MORE

  5. 4. Energy Audit of Mauritian Industries

    University essay from KTH/Kraft- och värmeteknologi

    Author : chandrasekar bootun; [2014]
    Keywords : ;

    Abstract : Abstract Three companies namely Esko & Co Ltd, Cuttings Work Ltd and The Message Ltd were targeted for the purpose of this project study. The first one is Esko & Co Ltd. The company has diversified its production activities to produce sweets, bubble gums, chocolates, wafers and noodles both for the local market and export purposes. READ MORE