Jobbins E a Ed (21 results)
Published by Gemmological Association of Great Britain, London, 1990
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 1 - 64 . The papers include: Some aspects of pearl cultivation with particular reference to cultivation at Xangwin, China; Star rhodolite garnet from Tanzania; Two remarkable Lechleitner synthetic emeralds; Coloration in electron-irradiated beryl. Illustrated in colour and monochrome. Pictor…ial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1991
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.393 - 456. The papers include: Two strange pleochroic chatoyant gems; Two types of historical traps - on 'Diamond Softening ' and the 'Antiquity of Emerald Oiling; Anomolous behaviour of certain gueda corundums during heat treatment; Emeralds from Columbia (part 2); The microscopic determinat…ion of structural properties for the characterization of optical uniaxial natural and synthetic gemstones - Part 2. Examples for the applicability of structural features for the distinction of natural emerald from flux-grown and hydrothermally -grown synthetic emerald. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1991
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.257 - 328. The papers include: Colour as a guide to the composition of scapolite from Burma; 'Machingwe' - a new emerald deposit in Zimbabwe; Crystallized and massive rose quartz deposits in Brazil; Suggestions for photographing jewellery; Vulcanite or gutta-percha? - that is the question; Ge…mmological investigation of a synthetic spinel crystal from the Soviet Union. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1988
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 129 - 208. The papers include: Etch figures on beryl; Characterization of Russian hydrothermally-grown synthetic emeralds; Radiation induced structural damage in beryl; The emeralds of Fazenda Boa Esperanca, Taua, Ceara, Brazil - occurrence and properties; Hallmarked synthetic emerald; Quant…itative cathodoluminescence - a modern approach to gemstone recognition. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1988
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.209 - 272 . The papers include: Imitation pearl coatings; Alexandrite - natural of synthetic; A new type of twinning in natural sapphire; An unusual ruby from Nepal; The gemmological characteristics of Inamori synthetic cat's-eye alexandrite chrysoberyl; Violet emeralds? Illustrated in colour… and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1987
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 513 - 536. The pages are stapled at the fold to blue card covers with lettering in reverse on a white front panel. CONDITION. Fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1985
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 21 x 15 cm., pp. 745 - 772. The pages are stapled at the fold to grey card covers with black lettering on the front. CONDITION. Fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1994
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 1 - 72. The papers include: Myanmar and it gems - an update; Notes from the gem abnd pearl testing laboratory, Bahrain, - 3. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks o…f ownership.
Published by Gemmological Association of Great Britain, London, 1992
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 193 - 256. The papers include: Oxidation treatment of the sapphires from Shandong Province, China; Determination of the age and origin of emeralds using rubidium-strontium analysis; Identication fo fissure-treated gemstones; Symmetrical polyhedra for gemstones; The chemical properties of Col…umbian emeralds. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1992
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 129 - 192. The papers include: Emeralds from Madagascar; Surface features on natural rubies and sapphire derived from volcanic provinces; Application of geochemistry to exploration for gem deposits, Sri Lanca; 'The most unkindest cut of all' - recutting the Koh-i-Nur. Illustrated in colour a…nd monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1993
- Softcover
- First Edition
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 449 - 512. The papers include: Gemmological properties of type Ia diamond with an unusually high hydrogen content; The glass filling of diamonds - part 1. an explanation of the colour flashes; Opalite triplets - new imitations of opal; The first occurrence of musgravite as a faceted gemstone…; Diamond repicas - possible but just. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1992
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp. 65 -, 128. The papers include: Vanadian grossular garnet (tsavorite) from Pakistan; An examination of 'Aqua Aura' enhanced fashioned gems; Radioactive glass imitation emeralds and an unusual Verneuil synthetic ruby; On the properties of meteoritic gem olivine from a pallasite from Esquel, pa…tagonia, Argentina; Lamellar inclusions in spinels from Morogoro area, Tanzania; Determination of dispersion using a refractometer; Magnetic resonance distinction between synthetic and natural 'padpradscha' sapphires. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1990
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.193 - 256. The papers include: Gemstone prospects in Central Nigeria; Hematite inclusions in Eonyang amethyst from Korea; Bead buyers and parcel pickers filter set; Water in beryl - a contribution to the separability of natural and synthetic emeralds by infrared spectroscopy; Gemmological tea…ching in Hong Kong and China; Detection of synthetic emeralds by thermal conductance. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1988
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.65 - 128. The papers include: Orientated lath-like inclusions of a new type in spinel; Synthetic opal; Observations on turquoise, lapis-lazuli and coral, and some of their simulants; Notes on inclusions in a greyish kyanite; Investigation of cat's-eye zircons from Sri Lanka; Gemmological inve…stigation of a large faceted east African enstatie; Lechleiter synthetics rubies with natural seed and synthetic overgrowth; Colour-changing chromiferous tourmalines from East Africa. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1988
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.1 - 64. The papers include: The gemstones in a Maharaja's sword; Surface repaired corundum - two unusual variations; A doublet made of a natural green sapphire crown an a Verneuil synthetic ruby pavilion; Morphology and twinning in Chatham synthetic blue sapphire; Identifying yellow sapphires… - two importatn techniques; Emerald-coloured rough; The refractometer - distant vision and awkward specimens; Fither development of the Brewster-angle refractometer. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1987
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.337 - 400. The papers include: Damage to cut diamonds; Confusion in colourless stones; On the colour of gemstones and Nelson's 'body colour'; The two-colour beryl from Orissa, India; Colour and irradiation-induced defects in topaz treated with high-energy electrons; Sapphirine (nor sapphire)…in a ruby from Bo Rai, Thailand; Diaspore, a rare faceted gem; Some colour variants in jadeite; On the inclusions in emeralds from Santa Terezinha de Goias, Brazil. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1986
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.73 - 136 The papers include: New developments in spectroscopic methods for detecting artificial coloured diamonds; Green adventurine quartz, mineralogical characterization; A description of jasper found at the Orinduik Falls in Guyana, South America; Gem hornblende from Baffin Island, NWT, Ca…nada; On the problem of using gallium content as a means of distinction between natural and synthetic gemstones. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1986
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.137 - 200. The papers include: Some observations on brown tourmaline from Elahera, Sri Lanka; A re-investigation of gahnospinels from Sri Lanka; Some unusual cat's-eyes; A peculiar inclusion in a yellow corundum from Malawi; The brilliant cut - analysis of weight by calculation; Light, heavy…and rare minerals in the washed out gravels of Sri lanka. Illustrated in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1986
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.201 - 264. The papers include: Glass fillings in sapphire; Solution coloration in smoky quartz; The color bar in the gemstone industry; Spectrophotometric measurements of faceted rubies, critical review of an immersion technique; The gem-trak gemstone identifier - a test report. Illustrated i…n colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1987
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.265 - 336. The papers include: Metallic inclusions in Chatham synthetic corundum; Chalcopyrite in peridot, a first observation; New investigations of synthetic amethyst produced in Japan; On corundums from Umba Valley, Tanzania; On twinning in natural and synthetic flux-grown ruby. Illustrate…d in colour and monochrome. Pictorial blue card covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.
Published by Gemmological Association of Great Britain, London, 1986
- Softcover
- First Edition
Seller: Peter Rhodes, Southampton, United KingdomPeter Rhodes
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Add to basketPaperback. 1st Ed. 24 x 17.5 cm., pp.1 - 72. The papers include A description of ruby from Nepal; Identifcation of hollow natural pearls and non-nucleated cultured pearls; Seiko synthetic emeralds; Blue and green beryls (aquamarines and emeralds) of gem quality from Nigeria. Illustrated in colour and monochrome. Pictorial blue c…ard covers with white lettering on the spine and front. CONDITION. Near fine. A very clean tight copy. No marks of ownership.