Piedras preciosas: Cómo reconocer, valorar y comprar gemas con criterio profesional

Name: Piedras preciosas: Cómo reconocer, valorar y comprar gemas con criterio profesional
Brand: de Vecchi Ediciones
SKU: 9798899566554
Price: 2713.0 INR
Availability: InStock

by Mario Fontana

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ISBN13: 9798899566554
Binding: Hardcover
Subject: N/A
Publisher: de Vecchi Ediciones
Publisher Imprint: de Vecchi Ediciones
Publication Date: August 10, 2019
Pages: 96
Original Price: GBP 23.99
Language: Spanish
Edition: N/A
Item Weight: 404 grams
BISAC Subject(s): Rocks & Minerals

About The Book

Aprenda a reconocer y valorar una gema, a distinguir sus caracter�sticas generales y las modalidades de medici�n; por ejemplo, la dureza (muy importante y decisiva para reconocer un diamante aut�ntico), la densidad, el color, el �ndice de refracci�n, el brillo y sus efectos �pticos particulares. Adem�s, esta obra le mostrar� el modo de cortar las piedras preciosas, c�mo pueden hacerse m�s sofisticadas mejorando su color y brillo, y c�mo efectuar un cuidadoso an�lisis de todas las gemas, prestando una particular atenci�n al diamante, rub�, zafiro, topacio y a los berilos (esmeraldas, aguamarinas). Sab�a que para valorar un diamante existe la regla de las cuatro C? En estas p�ginas encontrar� una descripci�n de estos cuatro elementos: colour (color), clarty (pureza), cut (corte), carat (medici�n de quilates). Todas las explicaciones son sencillas, claras y vienen acompa�adas de numerosas fotograf�as en color. Al final del libro encontrar� un glosario que le ayudar� a entender r�pidamente los t�rminos t�cnicos indispensables. Una obra que le proporcionar� las bases profesionales para el comercio de gemas o, sencillamente, para comprarlas en lugares especializados.

About The Author

Fontana, Mario: - Mario Fontana, licenciado en geología y profesor, estudia y colecciona piedras preciosas desde muchos años. Es autor de un texto sobre mineralogía, de un libro sobre gemología y de numerosos artículos y monografías sobre el tema

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