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Süstaşları ve kartal ametist oluşumları

Başlık çevirisi mevcut değil.

  1. Tez No: 55850
  2. Yazar: BANU GÖZÜPEK
  3. Danışmanlar: DOÇ.DR. SEZAİ KIRIKOĞLU
  4. Tez Türü: Yüksek Lisans
  5. Konular: Jeoloji Mühendisliği, Geological Engineering
  6. Anahtar Kelimeler: Belirtilmemiş.
  7. Yıl: 1996
  8. Dil: Türkçe
  9. Üniversite: İstanbul Teknik Üniversitesi
  10. Enstitü: Fen Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 102

Özet

These man-made gemstones are not“imitations”or“fakes”but have the same chemical compositions and physical properties as the natural minerals. One of the major tasks of the gemologist, and frequently a difficult one; is to determine whether a given gem is natural or synthetic. Such determinations may be very important, for the rare natural gem may have a value several hundred fold greater than its abundant synthetic rival. Changing the colour of gemstones by heat, by irradiation and by staining, has become common in species susceptible to such changes, such treatment might improve the beauty of some stones. Methods of gem synthesis which are melt growth, growth from solution and diamond synthesis are explained in the fourth chapter. The fifth chapter is cutting and polishing of gemstones. The two basic types cabochon and faceted cuts are given in detail with drawings. There are various cabochon cuts but the most common has a smooth domed top and a flat base. Faceted cut gemstones are bounded by plane surfaces (facets) to which different names are given depending on their positions on the stone. Although faceted gems have different shapes, the brilliant cut is most common for diamonds. The top of the stone is called the bezel, crown or top, the lower part of the stone is called the pavilion, base or back. The top facet (usually the largest) is the table, the small facet at the bottom of the stone parallel to the table (which may not be present) is the culet. The edge between the bezel and pavilion is the girdle. Turkey's gemstone potential and gemstone economy is the sixth chapter. Gemstones formed at Muğla-Milas, Sivas-Kangal, Manisa-Kula-Salihli-Akhisar-Demirci, Uşak- Eşme, Aydın-Söke- Yatağan, Izmir-Güzelbahçe, Ankara-Çubuk, Eskişehir-Sancakaya- Beypazan-İnönü- Yunus Emre, Yozgat-Şefaatli-Sorgun, Bilecik-Bozüyük-Söğüt, Bahkesir-Gönen-Biga, Afyon-Bayat, Kütahya-Simav, Erzurum-Oltu, Tokat-Gülpınan are exampled. The seventh chapter is the amethyst formations at Kartal limestone mine. After defining the location of site and the geological formations, samples are examined and gemological survey methods are applied on amethyst crystals. The violet and purple varieties of quartz provide the most prized and in many respects the most interesting of the large family of quartz minerals. The name is said to have been derived from the Greek word“Amethustos”which is translated as“not drunken”and was given to the stone from the belief that the wearer would not suffer from excess consumption of alcoholic drinks. xiv

Özet (Çeviri)

According to the legend about amethyst's origin, Bacchus the God of wine getting angry with someone, decides to take revenge from the first person, passing by and orders his tigers eat At that moment tigers attack a girl named Amethyst who was going to worship Diana the God of virtue. As Amethyst begs for help, Diana turns her into a perfect crystal statue. Bacchus feeling sorry for what he had done pours a glass of wine on to the statue and gives amethyst the lovely colour. Gemstones which are universe's perfect creations, bridge human history. With a sparkle as fresh and bright today as when they formed a billion years ago, they offer a colour for every taste. When you own gemstones, you own the rainbow. xvThese man-made gemstones are not“imitations”or“fakes”but have the same chemical compositions and physical properties as the natural minerals. One of the major tasks of the gemologist, and frequently a difficult one; is to determine whether a given gem is natural or synthetic. Such determinations may be very important, for the rare natural gem may have a value several hundred fold greater than its abundant synthetic rival. Changing the colour of gemstones by heat, by irradiation and by staining, has become common in species susceptible to such changes, such treatment might improve the beauty of some stones. Methods of gem synthesis which are melt growth, growth from solution and diamond synthesis are explained in the fourth chapter. The fifth chapter is cutting and polishing of gemstones. The two basic types cabochon and faceted cuts are given in detail with drawings. There are various cabochon cuts but the most common has a smooth domed top and a flat base. Faceted cut gemstones are bounded by plane surfaces (facets) to which different names are given depending on their positions on the stone. Although faceted gems have different shapes, the brilliant cut is most common for diamonds. The top of the stone is called the bezel, crown or top, the lower part of the stone is called the pavilion, base or back. The top facet (usually the largest) is the table, the small facet at the bottom of the stone parallel to the table (which may not be present) is the culet. The edge between the bezel and pavilion is the girdle. Turkey's gemstone potential and gemstone economy is the sixth chapter. Gemstones formed at Muğla-Milas, Sivas-Kangal, Manisa-Kula-Salihli-Akhisar-Demirci, Uşak- Eşme, Aydın-Söke- Yatağan, Izmir-Güzelbahçe, Ankara-Çubuk, Eskişehir-Sancakaya- Beypazan-İnönü- Yunus Emre, Yozgat-Şefaatli-Sorgun, Bilecik-Bozüyük-Söğüt, Bahkesir-Gönen-Biga, Afyon-Bayat, Kütahya-Simav, Erzurum-Oltu, Tokat-Gülpınan are exampled. The seventh chapter is the amethyst formations at Kartal limestone mine. After defining the location of site and the geological formations, samples are examined and gemological survey methods are applied on amethyst crystals. The violet and purple varieties of quartz provide the most prized and in many respects the most interesting of the large family of quartz minerals. The name is said to have been derived from the Greek word“Amethustos”which is translated as“not drunken”and was given to the stone from the belief that the wearer would not suffer from excess consumption of alcoholic drinks. xivAccording to the legend about amethyst's origin, Bacchus the God of wine getting angry with someone, decides to take revenge from the first person, passing by and orders his tigers eat At that moment tigers attack a girl named Amethyst who was going to worship Diana the God of virtue. As Amethyst begs for help, Diana turns her into a perfect crystal statue. Bacchus feeling sorry for what he had done pours a glass of wine on to the statue and gives amethyst the lovely colour. Gemstones which are universe's perfect creations, bridge human history. With a sparkle as fresh and bright today as when they formed a billion years ago, they offer a colour for every taste. When you own gemstones, you own the rainbow. xvThese man-made gemstones are not“imitations”or“fakes”but have the same chemical compositions and physical properties as the natural minerals. One of the major tasks of the gemologist, and frequently a difficult one; is to determine whether a given gem is natural or synthetic. Such determinations may be very important, for the rare natural gem may have a value several hundred fold greater than its abundant synthetic rival. Changing the colour of gemstones by heat, by irradiation and by staining, has become common in species susceptible to such changes, such treatment might improve the beauty of some stones. Methods of gem synthesis which are melt growth, growth from solution and diamond synthesis are explained in the fourth chapter. The fifth chapter is cutting and polishing of gemstones. The two basic types cabochon and faceted cuts are given in detail with drawings. There are various cabochon cuts but the most common has a smooth domed top and a flat base. Faceted cut gemstones are bounded by plane surfaces (facets) to which different names are given depending on their positions on the stone. Although faceted gems have different shapes, the brilliant cut is most common for diamonds. The top of the stone is called the bezel, crown or top, the lower part of the stone is called the pavilion, base or back. The top facet (usually the largest) is the table, the small facet at the bottom of the stone parallel to the table (which may not be present) is the culet. The edge between the bezel and pavilion is the girdle. Turkey's gemstone potential and gemstone economy is the sixth chapter. Gemstones formed at Muğla-Milas, Sivas-Kangal, Manisa-Kula-Salihli-Akhisar-Demirci, Uşak- Eşme, Aydın-Söke- Yatağan, Izmir-Güzelbahçe, Ankara-Çubuk, Eskişehir-Sancakaya- Beypazan-İnönü- Yunus Emre, Yozgat-Şefaatli-Sorgun, Bilecik-Bozüyük-Söğüt, Bahkesir-Gönen-Biga, Afyon-Bayat, Kütahya-Simav, Erzurum-Oltu, Tokat-Gülpınan are exampled. The seventh chapter is the amethyst formations at Kartal limestone mine. After defining the location of site and the geological formations, samples are examined and gemological survey methods are applied on amethyst crystals. The violet and purple varieties of quartz provide the most prized and in many respects the most interesting of the large family of quartz minerals. The name is said to have been derived from the Greek word“Amethustos”which is translated as“not drunken”and was given to the stone from the belief that the wearer would not suffer from excess consumption of alcoholic drinks. xivAccording to the legend about amethyst's origin, Bacchus the God of wine getting angry with someone, decides to take revenge from the first person, passing by and orders his tigers eat At that moment tigers attack a girl named Amethyst who was going to worship Diana the God of virtue. As Amethyst begs for help, Diana turns her into a perfect crystal statue. Bacchus feeling sorry for what he had done pours a glass of wine on to the statue and gives amethyst the lovely colour. Gemstones which are universe's perfect creations, bridge human history. With a sparkle as fresh and bright today as when they formed a billion years ago, they offer a colour for every taste. When you own gemstones, you own the rainbow. xv

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