 | | Report (volume) | | Gem Stones of the United States GEOLOGICAL SURVEY BULLETIN 1042-G A CONTRIBUTION TO ECONOMIC GEOLOGY...GEOLOGY GEM STONES OF THE UNITED STATES By Dorothy M. Schlegel ABSTRACT Many semiprecious, but few precious...precious, gem stones have been found in the United States. Beauty, durability, and rarity are the most...most important qualities of a precious gem. Gem stones are distinguished by their, physical properties: color...physical property, or persons. The most popular gem cuts are the cabochon, rose, brilliant, step, and |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...Five Tourrmline-1 the first special issue in the Gem Minerals Series Introduction Notes from the Editor....................365 by C. A. Francis Pakistan Gem pegmatites of the Shingus-Dusso area, Gilgit, Pakistan..........................413 by A. M. Bassett California Recent work at the Himalaya m in e ............lepidolite, mined recently at the Himalaya mine, Pala, California. William Larson collection; photo by Harold |  | | Journal (issue) | | THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN GEM MOLOGICAL ASSOCIATION OF GREAT BRITAIN SAINT DUNSTAN'S...of precious stones is a source of worry for the gem jeweller. A n actual case is described here, with...other than those of the usual commercial scale for gem diamonds, which includes colourless stones to those...N G There is no point whatsoever in irradiating gem diamonds of good original colour as this would probably...for a gemstone variety although by no means all gem materials show definite absorption bands. There are |  | | Report (issue) | | laying it upon the photographic plate Bulletin San Francisco, No. 37. June, 1905. Gems, Jewelers’...of California Issued California State by the Mining Bureau Francisco. Ferry Building, San Lewis...growing of the output care Kunz, A.M., No. California,” Stones of of which this Bulletin treats is...to F. George Bureau: Mining Ornamental the Honorable and California, of State the of the... George Kunz, in the he has exercised ance, Gem and the use Industry complete, and to our |  | | Journal (article/letter/editorial) | | Pegmatites: ART Downloaded by [University of California, San Diego] at 03:56 02 March 2016 What TOURMALINE...from which many of the finest mineral specimens and gem materials are obtained. The minerals chosen will...Garnet Ledge dike, Little Three mine, Ramona, San Diego County, California. Varieties of elbaite: (c) rubellite...rubellite, 10 cm, Himalaya mine, Mesa Grande, California, found by Ralph Potter in 1958, William Larson...6 cm, 1991 London Pocket, Little Three mine, Ramona, California; (e) indicolite, 5.6 cm, Aracuai, Minas |  | | Journal (article/letter/editorial) | | Zapot pegmatite, Gillis Range, Mineral Co., Nevada, USA. Named in honor of W.B. Simmons. The sample is 1...2113/gselements.8.4.281 P egmatites are sources of gem-quality crystals of beryl, tourmaline, topaz, spodumene...discovered in Africa and Asia. Most high-quality gem minerals occur in miarolitic cavities found near...pegmatites and ultramafic host rocks. The most important gem-bearing granitic pegmatites formed at shallow levels...cavities in some pegmatites have produced tons of gem crystals valued in excess of $50 million. KEYWORDS |  | | Journal (article/letter/editorial) | | Inclusion Studies of GEM-Bearing Granitic Pegmatite-Aplite Dikes, San Diego Co., California Bruce E. Taylor...Geology, Stanford University, Stanford, California 94305, USA aAbteilung Geochemie, Mineralogisches Institut...pegmatite-aplite dikes in southern California have been known for gem-quality minerals and as a commercial...zone, nearly to 565 ~ C. Subsolidus formation of gem-bearing pockets took place over a relatively narrow...rocks (6D .... = - 9 0 to - 1 3 0 ) in the Mesa Grande district crystallized in the presence of, or exchanged |  | | Journal (article/letter/editorial) | | variety; achroite, the colorless or white variety; and the green or Brazilian emerald variety. The gem tourmalines...tourmaline crystal was noted in the Luella mine near Avon, Latah county, Idaho, which measured 3x3x8 feet. Other...Dakota. A black crystal from Micaville, Randolph county, Alabama, was 10 inches in diameter and from 3...length. Other crystals have been noted at the Baer mine near Orange, New Hampshire, to 10 inches in diameter...pegmatite of Fremont county, Colorado. ROCKS AND MINERALS Maine, Connecticut, and California are noted for |  | | Journal (article/letter/editorial) | | by Schaller, 1913) was found at Fonte del Prete, San Piero in Campo, Campo nell'Elba, Elba Island, Livorno...Barton, performed on a pink elbaite from San Diego County, California, U.S.A. Zusammenfassung Ein Lithium-Turmalin...Analyse von Schaller, 1913) von Fonte del Prete, San Piero in Campo, Campo nell'Elba, Insel Elba, Provinz...einem rosa Elbait von San Diego County, Kalifornien, U.S.A. Introduction In 1709 a gem with the alternate...colourless Li-tourmaline (achroite) from “St. Pietro in Campo” (should be San Piero in Campo) on Elba Island |  | | Report (issue) | | International, LLC P.O. Box 263, East Hampton, CT 06424, USA Phone 1.860.267.1512; fax 1.860.267.7225 www.lapisint...elbaite crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993...CHRISTIAN WEISE VERLAG, GERMANY AND LAPIS INTERNATIONAL, USA Tourmaline ♦ History ♦ Mineralogy • Tourmaline...this crown was not a ruby, but a tourmaline. The gem in this crown is now the oldest known important tourmaline...until its early eighteenth century arrival on the gem mar kets of Amsterdam, that tourmaline gained notice |  | | Journal (issue) | | of the Little Three mine pegmatites, Ramona district, San Diego County, California ..................... B. Spaulding R. A. Mason & R. F. Martin , California locality index ...........................................129 by A. R. Kampf & the Southern California Chapter of the Friends of Mineralogy, Locality...Ramona in e P e g m a t it e s , istrc San Diego D ,California Eugene E. Foord U. S. Geological Survey...Louis B. Spaulding, Jr. P. O. Box 807, Ramona, California 92065 Roger A. M ason Dept, of Earth Sciences |  | | Journal (article/letter/editorial) | | schorl. When colorless transparent, it is called achroite. Strongly dichroic. May often be pyroelectric...to the world one of the most interesting of the gem stones. Among the early names applied to it, "aschentreckers'...notwithstanding its poor repute as a producer of gem stones, stands first among the sources of tourmaline...tourmalines nor the size and quality as those of California. In its chemical composition the tourmaline is...may be distributed laterally as in those from California and Brazil, or concentrically as in some from |  | | Journal (issue) | | Jan/Feb 2024 Vol.99, No.1 ROCKS MINE ."Iii[! iil"J www.tandfonline.com/vram Pegmatite Minerals & Gems...Francis Maine Mineral & Gem Museum, ME John Rakovan New Mexico Institute of Mining & Technology, Socorro...Kampf, l.A. County Museum of Natural History, CA Virgil W. Lueth, New Mexico Institute of Mining & Technology...across a local area net\,vork. Subscription offices: USA/North America: Taylor & Francis Group, LLC, 530 Walnut...Copyright Clearance Center (www.copyright.com) in the USA or the Copyright Licensing Agency (www. cla.co.uk) |  | | Journal (article/letter/editorial) | | 2113/gselements.7.5.333 W ith their multitude of colors, gem tourmalines are among the most popular colored gemstones...structure and to exposure to natural radiation. Gem tourmalines that form in magmatic, pegmatitic environments...elbaite and fl uorliddicoatite species, and the rarer gem tourmalines that develop in metamorphic rocks are...tourmaline, gemstone, Paraíba-type, chromophores, gem deposits TOURMALINE AS A GEMSTONE Perhaps more than...Clearly, tourmaline is one of the most important gem materials on the market today. by 1717 they were |  | | Journal (article/letter/editorial) | | THE GEM COLLECTOR Conducted by Bill Cole 408 Dickinson, Chillicothe, Mo. TOURMALINE Many writers have...Tourmaline as the rainbow gem, and what better name could be bestowed on this gem which occurs in such a...occurs in a wider range of color than any other gem or mineral. The name Tourmaline is derived from the... not too much is known about the history of the gem as it was not referred to by this name until the...been used for centuries as a gem. It was only recognized as a distinct gem species early in the Eighteenth |  | | Report (issue) | | STATE OF CALIFORNIA EARL WARREN. Governor DEPARTMENT OF NATURAL RESOURCES WARREN T. HANNUM, Director...BUILDING. SAN FRANCISCO OLAF P. 11 JENKINS. Chief SPECIAL REPORT 7-A 5AN FRANCISCO JUNE GEM- AND LITHIUM-BEARING...LITHIUM-BEARING PEGMATITES OF THE PALA DISTRICT, SAN DIEGO COUNTY, CALIFORNIA By RICHARD H. JAHNS and LAUREN...University of California, Davis Libraries http://archive.org/details/gemlithiumbearin07jahn GEM- AND LITHIUM-BEARING...LITHIUM-BEARING PEGMATITES OF THE PALA DISTRICT, SAN DIEGO COUNTY, CALIFORNIA! By Richard H. Jahns* and Lauren |  | | Journal (issue) | | ber-D ecem ber 1977 ISSUE! TourmalineGolconda mine, Minas Gerais, Brazil SHOWS Sul/urPerticara, Romagna...U E S t AVETltlB 0)A C L PyromorphiteWheatley mine, Hours: Wed-Sat. 10-5 Sunday 12-5 [evenings by...in e ra l fro m th e B e n ito ite G em M in e , San B e n ito C o u n ty, C a lif o r n ia ............lf Pabst, Jam es R. H in th o rn e Artinite fro m San B e n ito C o u n ty , C a lifo r n ia ............ike S y s te m , M e sa G ra n d e D is tric t, San D ie g o C o u n ty , C a lifo r n ia .......... |  | | Report (issue) | | M^iajKaMVMtrVMMIMMVW^- 'Vv s > MINERALS Of CALIFORNIA BULl,ETIN N«, 91 issei0 BY rr: ^ ;wIFORNIA...;wIFORNIA STATE Mii^ix^v BtmiiAU FERRY BUILDING - SAN FRANOSCC im^ ibiiiiiiliiii .III— Bb^aa^Aai^^A...FERRY BUILDIN(;. MININC; BUREAU SAN FRANCISCO FLETCHER HAMILTON San Francisco] State Mineralogi8l ...BULLETIN [November, 1922 No. 91 Minerals of California $ BY ARTHUR S. EAKLE, Ph. D. Professor...Mineralogy, University of California COMPLIMENTS OF ^^^foyd Sc, c/iosty GIST CALIFORNIA STATE PRINTING OFFICE |  | | Book | | MINERALS OF CALIFORNlA 299" 257889 PEMBERTON' HOFE CALIFORNIA MINERALS 2995 SEP 1933 OINCO Digitized by...org/details/mineralsofcalifo00pemb MINERALS OF CALIFORNIA - MINERALS OF CALIFORNIA H. Earl Pemberton ~ VAN NOSTRAND...H. Earl, 1907Minerals of California. An updating of: Minerals of California: centennial volume, 1866-1966...index. 1. Mineralogy - California. 2. Mines and mineral resources - California. I. MUidoch, J oseph, 1890Minerals...1890Minerals of California. 11. Title. QE375.C32P45 549.9794 81-15963 ISBN 0-442-274882 AACR2 Preface |  | | Journal (volume) | | STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES GEORGE D. NORDENHOLT. Director DIVISION OF MINES...MINES FERRY BUILDING, SAN FRANCISCO WALTER Vol. 35 W. BRADLEY State Mineralogist JANUARY, 1939 No...No. CALIFORNIA JOURNAL OF MINES AND GEOLOGY QUARTERLY CHAPTER OF STATE MINERALOGIST'S REPORT XXXY STATE...MINES FERRY BUILDING, SAN FRANCISCO CALIFORNIA 70803 LIBRARY UNIVERSITY OF CALIFORNIA DAVIS 1 DIVISION...Logan, District Mining Engineer O. McK. Laizure, District W. Burling Tucker, Reid J. Mining Engineer |  | | Book (volume) | | colorful and fabulous tourmalines and kunzites of California and Maine, the sparkling sapphires of Montana...contains all the basic information about the exciting gem resources of our continent. In careful, accurate...gemologists will find the latest and most accurate gem-identification data under each species. Finally,...unique and valuable reference by every collector, gem cutter, miner, geologist, mineralogist, jeweler,...up to the end of 1974. John Sinkankas San Diego, California July, 1975 JOHWSTUPAW.N19,901 Gene | | | Book | | ^ '“ P r . . . I West Orange SOUTH SAN FRANCISCO PUBLIC LIBRARY 9048 00992838 7 257989 R q549...q549 PEMBERTON, H.E MINERALS OF CALIFORNIA P 2995 IpSl q 49 f 07. 257889 ^ pe B T 5 w! balJ E...org/details/mineralsofcalifoOOpemb MINERALS OF CALIFORNIA MINERALS OF CALIFORNIA H. Earl r i L ] Pemberton ...H. Earl, 1907Minerals of California. An updating of: Minerals of California: 1866-1966 / by Joseph Murdoch...Includes index. 1. Mineralogy -California. 2. Mines and mineral resources- California. I. Murdoch, Joseph, 1890Minerals |  | | Book (volume) | | The Bowers Museum of Cultural Art Santa Ana, California + GEMSTONES OF EAST AFRICA by Peter C. Keller...Nevada; blue, cushion cut topaz (25.30 ct), Ramona, California; brownish yellow octagonal calcite (21.30 ct)...ct), Ramona, California; deep red cushion cut rhodochrosite (25.56 ct), Sweet Home Mine, Colorado; colorless...Kern County, California; octagonal step cut violetish pink kunzite (26.61 ct), Pala, California. NECKLACE...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75 |  | | Book (edition) | | interesting facts about the people involved in mining, current price lists of various stones, and numerous...unique and valuable reference by every collector, gem cutter, miner, geologist, mineralogist, jeweler,...from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...price increases, which make it more attractive to mine domestic deposits at a profit. Foreign labor is...information is included on the persons involved in mining the deposits, with dates and other pertinent information | | | Book (volume) | | The Bowers Museurn of Cultural Art Santa Ana, California GEMSTONES OF EAST AFRICA by Peter C. Keller...red-orange spessartine garnet ( 16.62 et), Ramona, California; deep red cushion cut rho...Kern Cowny, California; octagonal seep cut violetish pink kunzite (26.61 et), Pala, California. NECKLACE...blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75 diainonds... His works are known to almost every collector, gem cutter, gemologist, and mineralogist. His writings |
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