ISBN: Ostalo
Godina izdanja: 1968
Jezik: Engleski
Oblast: Geologija
Autor: Strani

66111) Van Nostrand`s Standard Catalog of Gems ,
Van Nostrandov standardni katalog dragog kamenja

Knjiga daje ocene za standardne i retke dragulje, kako brušene tako i neobrađene, prema kvalitetima i veličinama.

Author : John Sinkankas , University of California , Certified Gemologist - American Gem Society
Publisher: D. Van Nostrand Company , INC Princeton , New Jersey 1968

Carefully compiles prices for standard and rare gems, both cut and rough, according to qualities and sizes. Includes value factors, illustrations, tables, and diagrams.

This catalog contains a wealth of detailed pre-cise information accumulated from the author`s vast experience in lapidary work and gemology. Presented here for the first time is a systematic analysis of the factors involved in the evaluation of gems, cut and rough, including carvings and ornamental objects, pearls and other organic substances used for ornament. Detailed lists give qualities, sizes, and prices of both standard and rare gems. The author clearly explains factors involved in arriving at values such as color, rarity, hardness, fashion, etc., citing examples and laying the groundwork for the price lists in the second part of the book. Helpful photographs and diagrams of gems illustrate styles of cutting and explain good and bad features in gems which the prospective buyer must look for. Each gem discussed is prefaced by a thumbnail sketch with useful advice to buyers. There are tables of mone-tary conversions, weights and measures, size and shape diagrams and a useful bibliography.

This book is addressed to amateur lapidaries, gem collectors, museum buyers, etc., but will also be of enormous value to all jewelers, who now have no such comprehensive reference work to which they can turn for ideas of prices on un-usual gems; also it will be useful to miners and processors of gem rough, since yardsticks are established by which they can judge value of their productions and thus avoid embarassments in selling. Of course it is of interest to all readers considering the purchase of gems.

VAN NOSTRAND`S STANDARD CATALOG OF GEMS promises to be the `Bible` for the gem trade.

engleski jezik , tvrd povez, format 14,8 x 22 cm , zaštitni omot sa manjim zacepljenjima, knjiga očuvana, delovi teksta podvlačeni hemijskom olovkom, tekst čitljiv i vidljiv , ilustrovano, 286 strana, signatura na naslovnoj strani ,