Mazzon emanuele (10 resultados)

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condición: new. Paperback. Gems - History, Identification, and Evaluation - takes readers on a journey into the world of gemology with a clear, rigorous, and useful approach, halfway between science and wonder.The book teaches how to identify a gem, understand its nature, and confidently distinguish between natural, synthetic, and imitation materials. It covers the entire process, from the basics of identification (observation, tools, optical indices, density, fluorescence, spectroscopy, and laboratory methods) to professional and commercial evaluation. Each chapter is dedicated to a different gem, from the most famous ones such as diamonds, rubies, sapphires, and emeralds, to rarities of great collector's interest. The chapters follow a set pattern: history, origin, physical and optical properties, diagnostic criteria, treatments, use in jewelry, and quality parameters.The book is aimed at students, professionals in the sector, and anyone who wants to make informed purchases. It uses technical but accessible language and proposes a method that can be applied systematically. It is not enough to know how beautiful a gemstone is: it is essential to understand what you are looking at, how to verify it, and what its real value is. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Condición: New. Print on Demand.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Condición: New. Print on Demand.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condición: new. Paperback. Les gemmes -histoire, identification et evaluation- guide le lecteur dans le monde de la gemmologie avec une approche claire et rigoureuse, entre science et emerveillement. Cet ouvrage enseigne a reconnaitre les gemmes, a comprendre leur nature et a distinguer les materiaux naturels, synthetiques et les imitations, depuis les bases de l'identification jusqu'a l'evaluation professionnelle.Chaque chapitre est consacre a une gemme, des plus celebres aux raretes de collection, suivant une methode systematique qui combine histoire, proprietes, criteres diagnostiques, traitements et qualite. Destine aux etudiants, aux professionnels et aux passionnes, le livre offre des outils concrets pour observer, verifier et evaluer en toute connaissance de cause. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Gems - History, Identification, and Evaluation - takes readers on a journey into the world of gemology with a clear, rigorous, and useful approach, halfway between science and wonder.The book teaches how to identify a gem, understand its nature, and confidently distinguish between natural, synthetic, and imitation materials. It covers the entire process, from the basics of identification (observation, tools, optical indices, density, fluorescence, spectroscopy, and laboratory methods) to professional and commercial evaluation. Each chapter is dedicated to a different gem, from the most famous ones such as diamonds, rubies, sapphires, and emeralds, to rarities of great collector's interest. The chapters follow a set pattern: history, origin, physical and optical properties, diagnostic criteria, treatments, use in jewelry, and quality parameters.The book is aimed at students, professionals in the sector, and anyone who wants to make informed purchases. It uses technical but accessible language and proposes a method that can be applied systematically. It is not enough to know how beautiful a gemstone is: it is essential to understand what you are looking at, how to verify it, and what its real value is. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Paperback. Condición: new. Paperback. Les gemmes -histoire, identification et evaluation- guide le lecteur dans le monde de la gemmologie avec une approche claire et rigoureuse, entre science et emerveillement. Cet ouvrage enseigne a reconnaitre les gemmes, a comprendre leur nature et a distinguer les materiaux naturels, synthetiques et les imitations, depuis les bases de l'identification jusqu'a l'evaluation professionnelle.Chaque chapitre est consacre a une gemme, des plus celebres aux raretes de collection, suivant une methode systematique qui combine histoire, proprietes, criteres diagnostiques, traitements et qualite. Destine aux etudiants, aux professionnels et aux passionnes, le livre offre des outils concrets pour observer, verifier et evaluer en toute connaissance de cause. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…