Library's review
This classic work in precious stones has long served as the standard work in its field and has been called 'the most detailed work on gems' by the Encyclopedia Britannica. Amateur mineral hobbyists as well as professonal gem and jewelry dealers wiill find here a wealth of information on all aspects
The first volume begins with a discussion of the general characteristics and applications of gem minerals, how they are cut, how faults and counterfieits are detected, how the value of a gem is determined, etc. Then each type precious stone is discussed thoroughly, beginning with nearly 150 pages on the diamond. Volume II covers 53 additional gem minerals and dozens of varieties, including corundum, spinel, chrysoberyll, beryl, topaz, garnet, opal, on the chemical compositon of each stone, its hardness, color variations and lustre, disturbution and occurrence, types of rock in which the gem is found, how it is mined, and much more. He also relates many of the soories and legends connected with individual stoens which are famus for their size or historicla associaton. O special interest is a 20-page section giving precise instructions for distinguishing between precious stones with similar appearances and for detecting imitations. An extensive appendix covers coral and pearls.
The book was translated from the original German by L.J. Spenser, late editor of Mineralogical Abstracts and Mineralogical Magazine. A new Foreword and Addenda have been prepared by Dr. Edqard Olsen, Curator of Mineralogy at the Field Museum of Natural History in Chicago.
Unabridged, corrected republication, in two volumes, of the 1st (1904) English translation, 8 colour plates, 12 black adn white plates. 94 figures. Volume I: xxi 260 pp. of text. Volume II: xi 366pp. of text. 6 1/8 x 9 1/4.
Contents
Introduction
Volume I
First part General characters of precious stones
I Natural characters and occurrence
Chemical composition
Crystalline form
Physical characters-Specific gravity; Cleavage; Hardness; Optical characters (transparency, Lustre, Refraction of light, Double refraction of light, Colour, Dichroism, Special optical appearances and colour effects); Thermal, electrical, and magnetic characters (thermal characters, Electrical characters, Magnetism)
Occurrence of precious stoens
II Applicatonsof precous stones
Technical applicatons
Application as jewels-Forms of cutting; Process of cutting; Boring; Working on the lathe; Engraving etching; Colouring and burning; Mounting and setting; Faults in precious stones; Artificial production; Counterfeiting; Value and price
III Classification of precious stones
Second part Systematic description of precious stones
Diamond-Characters of diamond (Chemical characters, Crystalline form, Specific gravity, Cleavage, Hardness, Optical characters, Electrical and thermal characters); Occurence of diamond (India, Brazil, South Aftical, Borneo, Australia, North America, British Guiana, Urals, Lapland, In meteorites); Origin and artificial production of diamond; Applications of diamond (Application in jewellery; Diamond-cutting; Technical applications; Large and famous diamonds; Value of diamonds; Imitation and counterfeiting)
Volume II
Corundum-Ruby; Sapphire; Other varieties
Spinel
Chrysoberyl-Cymophane; Alexandrite
Beryl-Emerald; Precious beryl (Aquamarine)
Euclase
Phenakite
Topaz
Zircon
Garnet group-Hessonite; Spessaritite; Almandine; Pyrope (Bohemian garnet, 'Cape ruby,' Rhodolite); Demantoid; Grossularite, melanite, topazolite
Torumaline
Opal-Precious opal; Fire-opal; Common opal
Turquoise
Bone-turquoise
Lazulite
Callainite
Olivine
Cordierite
Idocrase
Axinite
Kyanite
Staurolite
Andalusite (chiastolite)
Epidote-Piedmontite
Dioptase
Chrysocolla
Garnierite
Sphene
Prehnite (chlorastrolite, zonochlorite)
Thomsonite (lintonite)
Natrolite
Hemimorphite
Calamine
Felspar group-Amazon-stone; Sun-stone; Moon-stone; Labradorescent felspar; Labrodorite)
Elaeolite
Cancrinite
Lapis-luzuli
Hauynite
Sodalite
Obsidian
Moldavite
Pyroxene and amphibole groups-Hypersthene; Bronziet; Bastite; Diallage; Diopside; Spodumene; Rhodonite (and lepidolite); Nephrite; Jadeite (chloromelentie)
Quartz-Crystallised quartz (rock-crystal, smokyqurtz, amethyst, citrine, rose-quartz, prase, sapphire-quartz, quartz with enclosures, cat's eye, tiger-eye); Compact quartz (hronstone, wood-stone, chrysoprase, jasper, avanturine); Chalcedony (common chalcedony, carnelian, plasma, heliotrope, agate (onyx); Malachite; Chessylite; Satin-spar (calcite, aragonite, and gypsum)
Fluor-spar
Apatite
Iron-pyrites
Haematite
Ilmenite
Rutile
Amber
Jet
Third Part Determination and distinguishing of precious stones
General methods
Transparent stones-Colourless stones; Greenish-blue stones; pale blue stones Blue stones; Violet stones; Likac and rose-coloured stones; Red stones; Reddish-brown stones; Smoke-grey and clove-brown stones; Reddish-yellow stones; Yellowish-brown stones; Yellow stones; Yellowish-green stones; Green stones
Translucent and opaque stones-White, faintly-coloured, and grey stones; Blue stones; Green stones; Black stones; Yellow and brown stones; Rose-red, red, and lilac stones; Stones with more than one colour; Stones with metallic lustre
Stones with special optical effects
Appendix
Pearls-Nture and formation; Application; Pearl-fishing; Imitation
Coral-The coral skeleton; the living coral; Distribution: Coral-banks; Coral-fishing: Application: Trade
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of gemmology, from assembing collections to cutting and polishing stones.The first volume begins with a discussion of the general characteristics and applications of gem minerals, how they are cut, how faults and counterfieits are detected, how the value of a gem is determined, etc. Then each type precious stone is discussed thoroughly, beginning with nearly 150 pages on the diamond. Volume II covers 53 additional gem minerals and dozens of varieties, including corundum, spinel, chrysoberyll, beryl, topaz, garnet, opal, on the chemical compositon of each stone, its hardness, color variations and lustre, disturbution and occurrence, types of rock in which the gem is found, how it is mined, and much more. He also relates many of the soories and legends connected with individual stoens which are famus for their size or historicla associaton. O special interest is a 20-page section giving precise instructions for distinguishing between precious stones with similar appearances and for detecting imitations. An extensive appendix covers coral and pearls.
The book was translated from the original German by L.J. Spenser, late editor of Mineralogical Abstracts and Mineralogical Magazine. A new Foreword and Addenda have been prepared by Dr. Edqard Olsen, Curator of Mineralogy at the Field Museum of Natural History in Chicago.
Unabridged, corrected republication, in two volumes, of the 1st (1904) English translation, 8 colour plates, 12 black adn white plates. 94 figures. Volume I: xxi 260 pp. of text. Volume II: xi 366pp. of text. 6 1/8 x 9 1/4.
Contents
Introduction
Volume I
First part General characters of precious stones
I Natural characters and occurrence
Chemical composition
Crystalline form
Physical characters-Specific gravity; Cleavage; Hardness; Optical characters (transparency, Lustre, Refraction of light, Double refraction of light, Colour, Dichroism, Special optical appearances and colour effects); Thermal, electrical, and magnetic characters (thermal characters, Electrical characters, Magnetism)
Occurrence of precious stoens
II Applicatonsof precous stones
Technical applicatons
Application as jewels-Forms of cutting; Process of cutting; Boring; Working on the lathe; Engraving etching; Colouring and burning; Mounting and setting; Faults in precious stones; Artificial production; Counterfeiting; Value and price
III Classification of precious stones
Second part Systematic description of precious stones
Diamond-Characters of diamond (Chemical characters, Crystalline form, Specific gravity, Cleavage, Hardness, Optical characters, Electrical and thermal characters); Occurence of diamond (India, Brazil, South Aftical, Borneo, Australia, North America, British Guiana, Urals, Lapland, In meteorites); Origin and artificial production of diamond; Applications of diamond (Application in jewellery; Diamond-cutting; Technical applications; Large and famous diamonds; Value of diamonds; Imitation and counterfeiting)
Volume II
Corundum-Ruby; Sapphire; Other varieties
Spinel
Chrysoberyl-Cymophane; Alexandrite
Beryl-Emerald; Precious beryl (Aquamarine)
Euclase
Phenakite
Topaz
Zircon
Garnet group-Hessonite; Spessaritite; Almandine; Pyrope (Bohemian garnet, 'Cape ruby,' Rhodolite); Demantoid; Grossularite, melanite, topazolite
Torumaline
Opal-Precious opal; Fire-opal; Common opal
Turquoise
Bone-turquoise
Lazulite
Callainite
Olivine
Cordierite
Idocrase
Axinite
Kyanite
Staurolite
Andalusite (chiastolite)
Epidote-Piedmontite
Dioptase
Chrysocolla
Garnierite
Sphene
Prehnite (chlorastrolite, zonochlorite)
Thomsonite (lintonite)
Natrolite
Hemimorphite
Calamine
Felspar group-Amazon-stone; Sun-stone; Moon-stone; Labradorescent felspar; Labrodorite)
Elaeolite
Cancrinite
Lapis-luzuli
Hauynite
Sodalite
Obsidian
Moldavite
Pyroxene and amphibole groups-Hypersthene; Bronziet; Bastite; Diallage; Diopside; Spodumene; Rhodonite (and lepidolite); Nephrite; Jadeite (chloromelentie)
Quartz-Crystallised quartz (rock-crystal, smokyqurtz, amethyst, citrine, rose-quartz, prase, sapphire-quartz, quartz with enclosures, cat's eye, tiger-eye); Compact quartz (hronstone, wood-stone, chrysoprase, jasper, avanturine); Chalcedony (common chalcedony, carnelian, plasma, heliotrope, agate (onyx); Malachite; Chessylite; Satin-spar (calcite, aragonite, and gypsum)
Fluor-spar
Apatite
Iron-pyrites
Haematite
Ilmenite
Rutile
Amber
Jet
Third Part Determination and distinguishing of precious stones
General methods
Transparent stones-Colourless stones; Greenish-blue stones; pale blue stones Blue stones; Violet stones; Likac and rose-coloured stones; Red stones; Reddish-brown stones; Smoke-grey and clove-brown stones; Reddish-yellow stones; Yellowish-brown stones; Yellow stones; Yellowish-green stones; Green stones
Translucent and opaque stones-White, faintly-coloured, and grey stones; Blue stones; Green stones; Black stones; Yellow and brown stones; Rose-red, red, and lilac stones; Stones with more than one colour; Stones with metallic lustre
Stones with special optical effects
Appendix
Pearls-Nture and formation; Application; Pearl-fishing; Imitation
Coral-The coral skeleton; the living coral; Distribution: Coral-banks; Coral-fishing: Application: Trade
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Genres
ISBN
486219100
Publication
Dover Publications, Inc.