Author: Elie L. Ménasché
Publisher: Asian Educational Services
ISBN: 9788120619326
Category : Gems
Languages : en
Pages : 88
Book Description
A Compre Hensive Look At The Precious Gems Of Sri Lanka. A Classic.
Ceylon Island of Gems
Author: Elie L. Ménasché
Publisher: Asian Educational Services
ISBN: 9788120619326
Category : Gems
Languages : en
Pages : 88
Book Description
A Compre Hensive Look At The Precious Gems Of Sri Lanka. A Classic.
Publisher: Asian Educational Services
ISBN: 9788120619326
Category : Gems
Languages : en
Pages : 88
Book Description
A Compre Hensive Look At The Precious Gems Of Sri Lanka. A Classic.
Gems of Sri Lanka
Author: D. H. Ariyaratna
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 208
Book Description
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 208
Book Description
Burma Gems
Author: Yavorskyy Co Ltd.
Publisher:
ISBN: 9780692919682
Category :
Languages : en
Pages : 236
Book Description
Publisher:
ISBN: 9780692919682
Category :
Languages : en
Pages : 236
Book Description
All about Gold, Gems, and Pearls (also Minerals Generally) in Ceylon and Southern India
Author: A. M. Ferguson
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 450
Book Description
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 450
Book Description
Gems of Ceylon
Author:
Publisher:
ISBN:
Category : Precious stones
Languages : en
Pages : 68
Book Description
Publisher:
ISBN:
Category : Precious stones
Languages : en
Pages : 68
Book Description
Gem Stones of Ceylon
Author: H. A. J. Hulugalle
Publisher:
ISBN:
Category : Gems
Languages : en
Pages : 4
Book Description
Publisher:
ISBN:
Category : Gems
Languages : en
Pages : 4
Book Description
Gemstones and Their Origins
Author: P.C. Keller
Publisher: Springer Science & Business Media
ISBN: 1468466747
Category : Science
Languages : en
Pages : 315
Book Description
Each gem deposit-whether of primary origin in the parent rocks; or secondary as alluvial placers in valley floors, river gravels, or the sand of oceanic shelves presents an eloquent chronicle of the Earth's life story. It reveals to the expert the prodigious processes which formed the present crust of our planet, of which this volume discloses a small but exciting detail. The materials of the Earth's crust are the rocks. In this book, the author expounds on how they were formed, why they altered, why they became the cradles of precious gemstones, how they are categorized, and how they are now exploited by man. What initiates the growth of gemstones? How do they crystallize? Why do gemstones of the same species, originating from different sources, vary? What causes the occurrence of varieties? Why do diamonds, unlike other precious stones, occur not near the Earth's surface in its crust, but deep down beneath it in the upper mantle? These are only a few of the entrancing subjects discussed in this enlightening volume. The reader learns that the Earth is surprisingly alive and altering constantly-sometimes through slow and equable changes and at times by violent and tremendous cataclysms, events from which gemstones issue.
Publisher: Springer Science & Business Media
ISBN: 1468466747
Category : Science
Languages : en
Pages : 315
Book Description
Each gem deposit-whether of primary origin in the parent rocks; or secondary as alluvial placers in valley floors, river gravels, or the sand of oceanic shelves presents an eloquent chronicle of the Earth's life story. It reveals to the expert the prodigious processes which formed the present crust of our planet, of which this volume discloses a small but exciting detail. The materials of the Earth's crust are the rocks. In this book, the author expounds on how they were formed, why they altered, why they became the cradles of precious gemstones, how they are categorized, and how they are now exploited by man. What initiates the growth of gemstones? How do they crystallize? Why do gemstones of the same species, originating from different sources, vary? What causes the occurrence of varieties? Why do diamonds, unlike other precious stones, occur not near the Earth's surface in its crust, but deep down beneath it in the upper mantle? These are only a few of the entrancing subjects discussed in this enlightening volume. The reader learns that the Earth is surprisingly alive and altering constantly-sometimes through slow and equable changes and at times by violent and tremendous cataclysms, events from which gemstones issue.
Ceylon : Gems and Minerals
Author: Ceylon Committee for the British Empire Exhibition, 1924
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Ruby and Sapphire
Author: Richard W. Hughes
Publisher:
ISBN: 9780964509719
Category :
Languages : en
Pages : 816
Book Description
From the dawn of time, ruby and sapphire have both attracted and fascinated humans in ways that few other items could.While objects of desire are found throughout the natural world, physical beauty is too often ephemeral. From the allure of a man, woman, flower or butterfly, through the fleeting moments of a sunset, there is little that lasts and practically nothing that can be passed down to our descendants. The exception is precious stones. Not only are they the most durable creations of mother nature, but their visual splendor is truly eternal.In this companion to his 2013 book, Ruby & Sapphire--A Collector's Guide, Richard Hughes examines these gems from the gemological standpoint, delving into these gems not just from the aesthetic, but also from the scientific point of view.The product of nearly 40 years of firsthand experience, it covers every aspect of the subject from A-Z. History, sources, prices, quality analysis, synthetics and treatments, everything is here. Ruby & Sapphire--A Gemologist's Guide represents the most comprehensive book ever written on a single precious stone. With over 1000 photos, maps and illustrations and 3500 references, it is nothing less than a tour-de-force of gemological scholarship.
Publisher:
ISBN: 9780964509719
Category :
Languages : en
Pages : 816
Book Description
From the dawn of time, ruby and sapphire have both attracted and fascinated humans in ways that few other items could.While objects of desire are found throughout the natural world, physical beauty is too often ephemeral. From the allure of a man, woman, flower or butterfly, through the fleeting moments of a sunset, there is little that lasts and practically nothing that can be passed down to our descendants. The exception is precious stones. Not only are they the most durable creations of mother nature, but their visual splendor is truly eternal.In this companion to his 2013 book, Ruby & Sapphire--A Collector's Guide, Richard Hughes examines these gems from the gemological standpoint, delving into these gems not just from the aesthetic, but also from the scientific point of view.The product of nearly 40 years of firsthand experience, it covers every aspect of the subject from A-Z. History, sources, prices, quality analysis, synthetics and treatments, everything is here. Ruby & Sapphire--A Gemologist's Guide represents the most comprehensive book ever written on a single precious stone. With over 1000 photos, maps and illustrations and 3500 references, it is nothing less than a tour-de-force of gemological scholarship.
All about Gold, Gems, and Pearls, in Ceylon
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 198
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 198
Book Description