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1. www.professionaljeweller.com › gia-marks-90thGIA marks 90th anniversary of Gems & Gemology

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   21 de mai. de 2024 · The Gemological Institute of America (GIA) has released the Spring 2024 edition of Gems & Gemology (G&G), marking the 90th anniversary of the journal. This issue presents research studies on coloured stones and treatments, recaps the Tucson gem shows, spotlights an impressive garnet necklace, and contains the annual G&G Challenge quiz.

2. geologyscience.com › gemstone › pietersitePietersite : Properties, Formation, Uses » Geology Science

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   16 de mai. de 2024 · Pietersite is a unique and striking gemstone known for its captivating chatoyancy and vibrant color variations. It is a type of chalcedony, which is a variety of quartz, and is primarily composed of hawk's eye and tiger's eye, both of which are well-known gemstones in their own right. Pietersite was discovered relatively recently, in 1962, and is named after Sid Pieters, who first encountered ...

3. collegedunia.com › courses › bachelor-of-science-bscBachelor of Science [B.Sc] (Gemology) Course Admission ...

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   Há 6 dias · B.Sc. in Gemology is a 3-year full-time undergraduate course divided into 6 semesters. Gemology is a branch of Mineralogy which is exclusively concerned with: identification; testing; manufacturing; grading; cutting; polishing; appraisal, of precious and semi-precious gemstones which are used in the jewellery and astrology industries.

4. www.gia.edu › gems-gemology › spring-2015-gemnewsTsavorite Garnet and Mahenge Red Spinel | Gems & Gemology - GIA

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   Há 2 dias · Figure 3. Left: Some prefer tsavorite garnets with a brighter color, while others prefer a darker appearance. The stone on the left weighs 9.50 ct. Right: This suite of three pear-shaped tsavorites totals 37.79 carats. The approximate asking price for such fine gems would be about $15,000 per carat.

5. minerals.expert › analyzing-the-importance-ofAnalyzing The Importance Of Mineral Chemical Properties In ...

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   6 de mai. de 2024 · Gemology is a fascinating field that uncovers the secrets behind the captivating world of gemstones. One crucial aspect of this study is understanding the importance of mineral chemical properties. By analyzing these chemical properties, gemologists gain valuable insights into the formation, quality, and value of gemstones.

6. medium.com › @chadatimms › analyzing-the-importanceAnalyzing The Importance Of Mineral Chemical Properties In ...

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   7 de mai. de 2024 · Gemology is the scientific study of gemstones, including their properties, formation, identification, and value. A crucial aspect of gemology is the understanding and analysis of mineral chemical ...

7. www.gia.edu › gems-gemology › spring-2019-gemnewsJeff Hapeman: Stories from a Gem Cutter | Gems & Gemology - GIA

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   Há 4 dias · Even when skillfully executed, the results can be boring. And yet, through a fine balance between rigorous mathematical modeling and his own gut feeling and intuition, Hapeman has managed to produce a visually interesting oval cut that is well suited for Montana sapphires, deepening the color of these typically pastel-hued gemstones (figure 1).