A Collector's Guide to Granite Pegmatites

A Collector's Guide to Granite Pegmatites PDF Author: Vandall T. King
Publisher: Schiffer Pub Limited
ISBN: 9780764335785
Category : Science
Languages : en
Pages : 94

Book Description
Granite pegmatite crystals have long been admired by gem and mineral collectors as a source of fine specimens and gem materials. Pegmatites can host important deposits of ore minerals and industrial commodities, such as feldspar and mica. Their physical and chemical complexity presents daunting challenges to researchers who seek to better understand their nature and origins. With 209 stunning color photos and clear, authoritative text, this book provides a thorough discussion. Chapters cover pegmatite forms and distributions, interior structures, crystal, mineral, and gem pockets, and references for further study. Examples are from North America as well as worldwide.

Collector's Guide to the Garnet Group

Collector's Guide to the Garnet Group PDF Author: R. J. Lauf
Publisher: Schiffer Publishing
ISBN: 9780764340031
Category : Garnet
Languages : en
Pages : 0

Book Description
Garnet, with its many color varieties, is a favorite of both mineral collectors and gemologists. Superb examples are found at many locales worldwide, in both igneous and metamorphic rocks. Other members of the group are prized by species collectors and micromount enthusiasts. Over 120 color photos of these beautiful minerals show each species in its geological context. This book also explains how garnets are formed and the unique conditions that create fine crystals and vivid colors. After a brief introduction, the general treatment begins with an explanation of the chemistry and taxonomy of the group. A section on their formation and geochemistry explains the kinds of environments where garnets are formed. Detailed entries for each mineral provide locality information and full-color photos so that collectors can see what good specimens look like and which minerals one might expect to find in association with them. An extensive bibliography is provided.

A Guide to Birthstones - A Collection of Historical Articles on the Gemstones Linked to Astrology

A Guide to Birthstones - A Collection of Historical Articles on the Gemstones Linked to Astrology PDF Author: Various
Publisher: Read Books Ltd
ISBN: 1473356415
Category : Body, Mind & Spirit
Languages : en
Pages : 59

Book Description
A comprehensive guide to the main varieties of birthstones, including their properties and structure. This volume features extracts from eight historical articles on the subjects of gemology and crystallography. This illustrative guide to birthstones is an ideal read for those who are interested in learning more about their spiritual connection to the natural world. Featured extracts taken from the following articles: - ‘Gems and Gem Materials’ Edward Henry Kraus - ‘The Natural History of Gems – Or, Decorative Stones’ C. W. King - ‘Diamonds and Precious Stones - Their History, Value and Distinguishing Characteristics’ Harry Emanuel - ‘A Manual of Precious Stones and Antique Gems’ Hodder M Westropp - ‘Precious Stones and Gems - Their History, Sources and Characteristics’ Edwin W. Streeter - ‘Gem Testing’ B W Anderso - ‘A Hand-Book of Precious Stones’ M. D. Rothschild - ‘Gem Stones and Their Distinctive Characters’ G. F. Herbert Smith

Firefly Guide to Gems

Firefly Guide to Gems PDF Author: Cally Oldershaw
Publisher: Firefly Books
ISBN: 9781552978146
Category : Crafts & Hobbies
Languages : en
Pages : 228

Book Description
A guide to the identification, structure, and uses of precious and semi-precious stones, novelty stones, agates, and crystals.

Collector's Guide to the Tourmaline Group

Collector's Guide to the Tourmaline Group PDF Author: R. J. Lauf
Publisher: Schiffer Publishing Limited
ISBN: 9780764337758
Category : Tourmaline
Languages : en
Pages : 0

Book Description
Among rock-forming minerals, the colorful tourmaline group is a favorite of both mineral collectors and gemologists. Superb examples are found at many locales worldwide, and in diverse geological settings from pegmatites to schists. Over 120 clear, crisp photos show each mineral in its geological context. This book will help mineral and gem collectors understand tourmaline mineralogy and see how changes in nomenclature reflect our evolving understanding of the group. The text explains the chemistry and taxonomy of the group, the environment in which tourmalines form, provides a detailed entry for each mineral including locality information and full-color photos wherever possible so that collectors can see what good specimens look like and which minerals one might expect to find in association with them. An extensive bibliography is provided for readers who wish to learn more. Every serious mineralogist, gemologist, and rock hound will need this book.

A Field Guide to Rocks and Minerals

A Field Guide to Rocks and Minerals PDF Author: Frederick H. Pough
Publisher: Houghton Mifflin Harcourt
ISBN: 9780395910962
Category : Fiction
Languages : en
Pages : 558

Book Description
Describes hundreds of minerals and lists their geographic distribution, physical properties, chemical composition, and crystalline structure.

A Collector's Guide to Rock, Mineral, & Fossil Localities of Utah

A Collector's Guide to Rock, Mineral, & Fossil Localities of Utah PDF Author: James R. Wilson
Publisher: Utah Geological Survey
ISBN: 1557913366
Category : Nature
Languages : en
Pages : 156

Book Description
With the tremendous growth of population in this and neighboring states, there are more collectors than ever before and with the rapidly escalating prices for mineral and fossil specimens in the retail market, there is a great demand for displayable material. It has become necessary for professional geologists, hobby collectors, and commercial collectors to recognize each others existence and to try to work together within a framework of regulation, courtesy, and common sense so that material of scientific value is not lost and undue restrictions are not placed upon collecting. There is a continuing need for collectors and professionals to work together with resource managers and legislators to develop workable laws and rules affecting the collecting of minerals and fossils. This publication contains details information about collecting areas, divided by county to make for ease of use. Each collecting area contains information about the minerals, rocks, or fossils present, map recommendations, and other helpful tips on getting to the sites.
Proudly powered by WordPress | Theme: Rits Blog by Crimson Themes.