Collector's Guide to the Tourmaline Group

Author: R. J. Lauf

Publisher: Schiffer Publishing Limited

ISBN: 9780764337758

Category: Science

Page: 93

View: 5487

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.

Collector's Guide to the Feldspar Group

Author: R. J. Lauf

Publisher: Schiffer Pub Limited

ISBN: 9780764343292

Category: Nature

Page: 93

View: 1317

Over 100 vivid color photographs of beautiful feldspar minerals show each species in its geological context. The feldspar minerals, as a group, make up nearly sixty percent of the earth's crust. Large crystals are found at many locales worldwide, in both igneous and metamorphic rocks. Often, feldspar forms the matrix for stunning gem crystals found in pegmatites. This book explains how feldspars are formed and the complicated structural features that create fine crystals, twins, 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 feldspars 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 for further study.

A Collector's Guide to Granite Pegmatites

Author: Vandall T. King

Publisher: Schiffer Pub Limited

ISBN: 9780764335785

Category: Science

Page: 94

View: 6973

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.

The Collector's Guide to Silicate Crystal Structures

Author: R. J. Lauf

Publisher: Schiffer Pub Limited

ISBN: 9780764335792

Category: Science

Page: 95

View: 4824

Over 140 color photos, diagrams, and text reveal the crystal structures, habits, names, and changing family relationships of silicate crystals. This thorough guide provides an introduction to crystallography, the current classification of silicate structures, and reviews orthosilicates, disilicates, chain silicates, sheet silicates, and framework silicates. Explore different ways the silicate tetrahedron can be arranged and great diversity of structures that result. Crystal structure is presented with drawings of ideal crystal forms and photographs of real crystals. In this way, mineral collectors can better understand the interplay between atomic arrangements and external habits, and ultimately develop an eye for recognizing crystal symmetry. This book is a must for all serious collectors of minerals.

The World of Fluorescent Minerals

Author: Stuart L. Schneider

Publisher: Schiffer Pub Limited

ISBN: 9780764325441

Category: Antiques & Collectibles

Page: 192

View: 5927

The rich and diverse world of fluorescent minerals is explored in this sweeping survey. Breathtakingly pure colors, with their ethereal glow, immediately capture your attention. Did you know that color television is a result of the study of fluorescing minerals? Fresh finds of fluorescent minerals are showing up regularly around the globe, and their collection is an entertaining and popular pasttime. To help the collector, over 825 photos display the minerals both as they might be found in daylight and in under the effects of ultraviolet light. Written for the collector and the merely curious, this pictorial reference will enrich your collecting experience with its informative text. It is an essential source for enjoying and identifying fluorescent minerals.

Collector's Guide to the Black Tourmaline of Pierrepont, New York

Author: Steven C. Chamberlain,George Robinson,Jeffrey Chiarenzelli,Michael Walter

Publisher: Schiffer Publishing

ISBN: 9780764351990

Category: Nature

Page: 128

View: 8871

Since its discovery by a teenager in 1859, thousands of specimens of lustrous black tourmaline crystals from Pierrepont, New York, have found their way into both museum and private mineral collections worldwide. Pierrepont is a classic American mineral locality and a popular site for field collecting, and the discovery of new collecting sites there in the past decade has only enhanced its importance. Yet no detailed scientific research has been published until now. The six authors represent a team with comprehensive skills to tackle this study, which covers the locality's history, geology, and mineralogy. The origin of the mineralization, the true nature of the black tourmaline, and the extensive suite of accessory minerals are presented in detail. The authors also resolve identification questions about the tourmaline and its many accessory minerals.

Tourmaline

Text Classics

Author: Randolph Stow

Publisher: Text Publishing

ISBN: 1922253111

Category: Fiction

Page: 288

View: 3644

There is no stretch of land on earth more ancient than this. And so it is blunt and red and barren, littered with the fragments of broken mountains, flat, waterless. Tourmaline, in outback Western Australia, is dying: its mines lie abandoned and drought has taken hold. When the enigmatic diviner Michael Random emerges from the desert, desperate townspeople see him as a messiah. Random begins to spread the word of God—and to promise them water, that most precious resource. Both a complex spiritual parable and an enduring apocalyptic vision, Tourmaline is Randolph Stow’s most controversial novel. Julian Randolph ‘Mick’ Stow was born in Geraldton, Western Australia, in 1935. He attended local schools before boarding at Guildford Grammar in Perth, where the renowned author Kenneth Mackenzie had been a student. While at university he sent his poems to a British publisher. The resulting collection, Act One, won the Australian Literature Society’s Gold Medal in 1957—as did the prolific young writer’s third novel, To the Islands, the following year. To the Islands also won the 1958 Miles Franklin Literary Award. Stow reworked the novel for a second edition almost twenty-five years later, but never allowed its two predecessors to be republished. He worked briefly as an anthropologist’s assistant in New Guinea—an experience that subsequently informed Visitants, one of three masterful late novels—then fell seriously ill and returned to Australia. In the 1960s he lectured at universities in Australia and England, and lived in America on a Harkness fellowship. He published his second collection of verse, Outrider; the novel Tourmaline, on which critical opinion was divided; and his most popular fiction, The Merry-Go-Round in the Sea and Midnite. For years afterwards Stow produced mainly poetry, libretti and reviews. In 1969 he settled permanently in England: first in Suffolk, then in Essex, where he moved in 1981. He received the 1979 Patrick White Award. Randolph Stow died in 2010, aged seventy-four. A private man, a prodigiously gifted yet intermittently silent author, he has been hailed as ‘the least visible figure of that great twentieth-century triumvirate of Australian novelists whose other members are Patrick White and Christina Stead’. Praise for Tourmaline ‘Intense and extraordinary.’ Spectator ‘Brilliantly evocative...disturbing.’ Meanjin

Introduction to Radioactive Minerals

Author: R. J. Lauf

Publisher: Schiffer Pub Limited

ISBN: 9780764329128

Category: Nature

Page: 144

View: 1397

Collectors have long admired uranium and thorium minerals for their brilliant colors, intense ultraviolet fluorescence, and rich variety of habits and associates. Radioactive minerals are also critically important as our source of nuclear energy. Understanding them is crucial to the safe disposal of radioactive waste. This book provides a systematic overview of the mineralogy of uranium and thorium, generously illustrated with nearly 200 color photos and electron micrographs of representative specimens. Includes an historical discussion of the discovery of radioactive elements and the development of uranium and thorium ore deposits, a discussion of the geochemical conditions that produce significant deposits, and a description of important localities, their geological setting and history. Major occurrences of interest to mineral collectors are arranged geographically. The minerals are arranged systematically, to emphasize how they fit into chemical groups, and for each group a few minerals are selected to illustrate their formation and general characteristics. With the resurgence of interest in nuclear power, this book is an invaluable guide for mineral collectors as well as nuclear scientists and engineers interested in radioactive deposits.

Masterpieces of the mineral world

treasures from the Houston Museum of Natural Science

Author: Wendell E. Wilson,Joel A. Bartsch,Houston Museum of Natural Science,Mark Mauthner

Publisher: Harry N. Abrams

ISBN: N.A

Category: Art

Page: 264

View: 8887

Offers photographs of eighty specimens from the collection of the Houston Museum of Natural Science, including azurite, barite, bournonite, and zoisite; discusses the history of each speciment; and explores what makes a mineral collectible.

Collector's Guide to Silicates

Di- and Ring Silicates

Author: Robert Lauf

Publisher: Collector's Guide to Silicates

ISBN: 9780764354366

Category: Nature

Page: 272

View: 1333

This book explains the structural relationships among di- and ring silicate minerals, known for their hardness and brilliant colors, and the geological conditions that create the beautiful crystals prized by collectors. The minerals are arranged systematically to emphasize how they fit into structural groups, and generously illustrated with nearly 600 structure diagrams, color photos, and drawings. An extensive bibliography includes a broad range of easily accessible references ranging from the foundational literature and original species descriptions to reports on current scientific research.

Collector's Guide to Quartz and Other Silica Minerals

Author: R. J. Lauf

Publisher: Schiffer Pub Limited

ISBN: 9780764341618

Category: Antiques & Collectibles

Page: 95

View: 4890

Quartz is prized by both mineral collectors and lapidary artists. Over 130 vivid photographs of these beautiful minerals are presented to show each mineral in its geological context. Superb examples are found in diverse geological settings from pegmatites to Alpine clefts and hydrothermal veins. The silica minerals are chemically simple, yet structurally complicated. Several high temperature and high pressure polymorphs are known. In addition to the polymorphs of silica, this book treats related minerals, including: lechatelierite, opal, and two natural clathrates, chibaite and melanophlogite. After a brief introduction, the general treatment explains the chemistry and taxonomy of the group. A section on their formation and geochemistry describes the kinds of environments where these minerals are formed. Then, 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 also provided.

Trilobites of New York

An Illustrated Guide

Author: Thomas Edward Whiteley,Gerald J. Kloc,Carlton Elliot Brett

Publisher: Comstock Pub Assoc

ISBN: N.A

Category: Nature

Page: 203

View: 8850

"Trilobites are the most lifelike of fossils—many well-preserved specimens belie their great antiquity and seem almost ready to arch their bodies, peer about with their compound eyes, and crawl forward as if to complete a journey that was interrupted hundreds of millions of years ago."—from the Foreword"New York State is and has long been a magnet for trilobite hunters. . . . New York's trilobites were among the first illustrated fossils in North America. . . . Many outstanding localities in New York State, from the majestic Ordovician limestone bluffs of Trenton Falls, to the Silurian beds in the great gorge of Niagara River, to the Devonian shale cliffs of Lake Erie, continue to yield abundant and spectacular trilobite fossils. New York strata have also yielded more trilobites with preserved appendages and other "soft parts" than almost any other region of the world. . . . Spectacular, ornate trilobites from New York ranging from a few millimeters to nearly a half meter in length, are featured in museums all over the world."—from the PrefaceThis superbly illustrated book reviews the trilobite fossils found throughout New York State, including their biology, methods of taphonomy (preservation of specimens), and the broader Paleozoic geology of the state. A general chapter on the geology of New York State places the importance of these now-extinct invertebrate marine animals into context. Sixty-seven line drawings and 175 black-and-white photographs illustrate individual species, many represented here by type specimens, and display the eerie beauty that has made New York State trilobites favorites of collectors the world over.

The Collector's Guide to Herkimer Diamonds

Author: Michael R. Walter

Publisher: Schiffer Pub Limited

ISBN: 9780764347108

Category: Antiques & Collectibles

Page: 96

View: 2046

This is the first published guide to Herkimer diamonds, striking quartz crystals, that includes all important aspects of interest to anyone curious about this unique form of the mineral quartz. Over 210 vivid color images of important specimens, associated minerals, and field shots illustrate the informative text and enhance the reader's experience. The text includes the most recent scientific information regarding Herkimer diamonds' geological and mineralogical history, where they can currently be found, descriptions of important historic locations, and the inclusion of noteworthy peripheral localities. The specific methods used to effectively field collect Herkimer diamonds are detailed, including photos of mining methods and a discussion of collecting strategy. Additionally, the mines are enumerated, the gear readers need is detailed, specimen preparation, mineral collections, and associated minerals recounted. This is the essential guide for every collector of these well known and much sought minerals, a guide only a seasoned field collector can provide.

Modern Jeweler’s Consumer Guide to Colored Gemstones

Author: David Federman

Publisher: Springer Science & Business Media

ISBN: 1468464884

Category: Science

Page: 253

View: 9495

Since early 1989, a gem dealer I've known for years has been calling me every few weeks to brief me on mounting mayhem in Colombia's lucrative emerald market. The troubling gist of these calls is always this: There is a full-fledged turf war going on between that South American country's bustling drug and gem trades for control of its emerald ex port business. According to this dealer and several others, anywhere from two to four thousand emerald industry people, mostly miners and deal ers, have been murdered since 1980. No doubt the gem sector, itself never gun shy, has retaliated in full and in kind. After all, the two groups have banded together in an intermittent alliance against a common enemy-Communist guerillas-with results the CIA would envy. I mention this bloodshed because of something the gem dealer once said to me: "I bet you never think of what a gem has to go through to get to a jewelry store:' He's right. I tend to think of colored stones as things of beauty, not objects of gruesome power struggles between mining kingpins and drug lords. Can you blame me, or anyone with insider knowledge, if a gem sheds any connection with its past once sculpted by a cutter into the glittering mar vel we see in a jeweler's showcase? Like Odysseus listening to the sirens' song, we become victims of an aesthetics-induced amnesia.

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

Author: James R. Wilson

Publisher: Utah Geological Survey

ISBN: 1557913366

Category: Fossils

Page: 148

View: 4272

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.

Cracker Jack Toys

The Complete, Unofficial Guide for Collectors

Author: Larry White

Publisher: Schiffer Pub Limited

ISBN: 9780764301896

Category: Antiques & Collectibles

Page: 262

View: 6317

Prize toys found in the Cracker Jack candy box from the late 19th century to the 1990s are shown and identified. Over 290 color photos depict the front and back of many prizes and aid in identifying individual toys and sets of prizes. The categories of prizes assist in easy cataloging.

Gems of the World

Author: Cally Oldershaw

Publisher: Firefly Books

ISBN: 9780228100072

Category:

Page: 256

View: 9763

-Lavishly illustrated, Gems of the World is intended for anyone who has ever been fascinated by crystals, jewelry, and gems, from general readers to seasoned professionals. It is a fine addition to general collections.- --Booklist, on the previous edition Gems of the World is a practical and comprehensive guide to the identification and properties of precious and semiprecious gems, novelty stones, agates and crystals. This edition has been revised and thoroughly updated. Changes and new features include updated maps of recently established diamond bourses and geographical country changes, plus new gem varieties and localities where they are found, new techniques for producing synthetic gemstones and simulants, and much more. There is comprehensive information on gems: gem formation mining the diamond industry conflict diamonds ethical sourcing crystal structure (diagrams and cuts) optical and physical properties fashioning and cutting (properties and uses) gemstone cuts for diamonds buying a diamond buying colored gemstones imitation and synthetic gemstones gemstone enhancement history of gems famous diamonds caring for gemstones and jewelry a color key of 139 gemstones. The text describes the world's diamond cutting and trading centers, the -diamond pipeline- that flows from mine to retail, and information on the gemstone industry, ethical mining, conflict diamonds and the emergence of new diamond centers. The description directory of gemstones is organized by their chemical composition. The 139 profiles describe each gem's geology, chemistry, properties (such as color, refractive index, and luster), cultural use in history and its value in jewelry. Photographs show the gem as a raw crystal, in common cuts, polished for use, and in some cases, also in a piece of jewelry. Gems of the World is an ideal reference for gemologists, collectors and general readers.

Gem

The Definitive Visual Guide

Author: DK

Publisher: Penguin

ISBN: 1465462120

Category: Antiques & Collectibles

Page: 440

View: 5424

Gem is a dazzling visual guide to precious stones, organic gems, and precious metals that weaves together beautiful, specially commissioned images and science, natural history, mythology, and true stories of adventure and discovery. From diamonds to sapphires to limestone, this comprehensive guide profiles all the key gemstones and other precious materials, and stunning images show the jewels in their different cuts, colors, and uses. The stories, myths, and legends that surround the most celebrated gems and jewel-laden artifacts from around the world are revealed, from their journeys in the company of royalty, film stars, and thieves to the curse of the Hope Diamond. Additionally, a reference section at the end of the book highlights a variety of other rocks and non-precious stones. Created in association with the Smithsonian Institution, Gem combines stunning photographs with expert knowledge, making it perfect for gift giving.

Rare Gemstones

How to Identify, Evaluate, and Care for Unusual Gems

Author: Renée Newman

Publisher: N.A

ISBN: 9780929975467

Category: Antiques & Collectibles

Page: 137

View: 3754

Rare Gemstones provides concise information on uncommon gems used by designers to create distinctive jewelry. Besides listing the identification properties of the gems, it tells you where they're found, how they're used, why they're unique, how they're priced and how to care for them. High quality photos (482) show the different colors, cutting styles and varieties of each gem and give ideas on how each can be used creatively in jewelry. The following gems are discussed and illustrated: amblygonite, andalusite, apatite, aragonite, axinite, azurite, benitoite, bixbite, brazilianite, bronzite, calcite, cobaltocalcite, charoite, chrysocolla, cuprite, danburite, diaspore, diopside, dumortierite, enstatite, epidote, fluorite, gaspéite, haüyne, hematite, hemimorphite, howlite, idocrase, jeremejevite, kornerupine, kyanite, larimar, lepidolite, magnesite, marcasite, maw-sit-sit, moldavite, obsidian, pectolite, phenakite, phosphosiderite, prehnite, psilomelane, pyrite, red beryl, rhodochrosite, rhodonite, scapolite, scheelite, seraphinite, serpentine, sodalite, sillimanite, smithsonite, sphalerite, sphene, sugilite, taaffeite, titanite, tugtupite, unakite, variscite, vesuvianite, zultanite. Rare Gemstones is a companion book to Newman's Gemstone Buying Guide and an ideal reference for jewelers, sales associates, appraisers, gem collectors, gemology students, gem dealers and consumers.