 | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Steven R. Morehead...100-year history of the Benitoite Gem mine, San Benito County, California . . . . . . . . . . . . . . . ...Benitoite Gem mine, San Benito County, California. Natural History Museum of Los Angeles County collection;...Benitoite Gem mine will note the portion of the story devoted to the 1935 visit to the mine by collecting...million, 125,000square-foot science center and state museum complex that will be the cornerstone of the |  | | Journal (article/letter/editorial) | | University Benitoite SAN BENITO COUNTY, CALIFORNIA IN KEEPING WITH the California state theme of this issue...occurrence in spectacular specimens to a single California location. Descriptions of various aspects of...mineral and use as a gemstone (it is the California state gem), and its unique crystallography can be...Professor George Louderback of the University of California soon found the mineral t o be a new species and...type benitoite locality, located in San Benito County, California, is at the southern end of the Diablo |  | | Catalog/List | | Director Chicago Alissa Ford Managing Director San Francisco Joe Maddalena Executive Vice President...Crystallized Gold from the famed Eagle’s Nest Mine in California A superb Crystallized “Leaf” Gold specimen...gemstone Amethyst to come from the famed Four Peaks Mine in Arizona A sharp and complicated Crystallized...Crystallized Silver with Copper from the famed Wolverine Mine in Michigan A “classic” Rhodochrosite with associated...associated Pyrite and Quartz from the Sweet Home Mine in Colorado An unusually massive and extremely colorful |  | | Journal (issue) | | .50 by Jim Brace-Thompson olivine gems on the san carlos apache Indian reservation The Mineralogical...Cross by Robert Beard regular columns Rock & Gem Kids ..............................................this reason, advertisements appearing in Rock & Gem should be considered as requests to inquire, rather...customerservice@beckett.com (800) 764-6278 Rock & Gem (ISSN 0048-8453, USPS 486-290) is published monthly...LLC. POSTMASTER: Send address changes to Rock & Gem, c/o Beckett Media, 4635 McEwen Rd., Dallas, TX 75244 |  | | Book (volume) | | Director The Bowers Museum of Cultural Art Santa Ana, California + GEMSTONES OF EAST AFRICA by Peter C....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 |  | | Journal (issue) | | JEWELRY BIRTHSTONES Past & Present INDIA’S FOSSILS GEM HUNTER Bernie Gaboury 3 FELDSPAR GEMS Sunstone...Yita Ridge and Welo gemstones by Gail O. Clark Gem Hunter ............................................................................ 56 Washington State University’s fluorescent rock exhibit captivates...Linda Weiford, WSU News REGULAR COLUMNS Rock & Gem Kids .......................................... 34...this reason, advertisements appearing in Rock & Gem should be considered as requests to inquire, rather | | | Book (volume) | | Director 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 |  | | Journal (issue) | | 2022 PubUshed with support: Lomonosov Moscow State University; Russian Geological Sodety Mineral Observer...generations of mineralogists at Lomonosov Moscow State University, Igor V. Pekov, one of his students,...Silbermintz and his collections in the Vemadsky State Geological Museum. Another is a story dedicated...Garanin Boris L Kantor Michael B. Leybov Bryan Lees (USA) Yuriy B. Marin Vladimir I. Pavlishin (Ukraine) Igor...T. Trofimov Lydie Touret (France) John S. White (USA) Managing Editor LudmilaA. Cheshko Sdence Editor |  | | Journal (issue) | | Rhodonite, 4.7 cm, from the 1700 level, Zinc Corporation mine, Broken Hill, New South Wales, Australia. Collection...collection, John Chapman photo. • 2.5 cm, Top Camp mine, Western Ausytralia. George Stacey collection, Jeff...Scovil photo. Middle row from left: • 2.3 cm, Kintore mine, Coolgardie, Western Australia. Aloe Family collection;...“national” mineral collection, so instead a system of State-run museums exists in the capital cities. The earliest...Lvov photo. other gold and nickel deposits in the State. Likewise the influx of prospectors looking for |  | | Catalog/List | | founder of Newmont Mining and owner of the Tsumeb mine. Upon his demise, it lent its considerable charm...year’s Arizona Centennial Exhibit at the Tucson Gem & Mineral Society Show, was the 70+ ounce Gold specimen...“European classic.” Additionally, we have: a 4 inch Gem Tanzanite crystal (Lot 49053), several world-class...FLUORESCING WILLEMITE WITH CALCITE SPECIMENS Sterling Hill Mine and Franklin area, Sussex Co., New Jersey Willemite...(14 x 7.6 x 4.4 cm), from the famed Sterling Hill Mine, it is a large exposed Willemite face, with a thinner |  | | Book | | The Lomonosov Moscow State University Moscow Russia The Lomonosov Moscow State University Moscow Russia...the authors of this book in the Lomonosov Moscow State University). Preface Contents 1 2 Some General...when milling and pressing. In particular, solid-state ion-exchange reactions are possible between KBr...absorption bands at *3590, 3570, 3520, and 3230 cm−1 in gem-quality crystals of hydrothermal origin from Zabargad...to differences in Fe concentration and oxidation state, water concentration, symmetry or the presence of |  | | Catalog/List | | QUARTZ CRYSTAL WITH TOURMALINE Barra de Salinas Mine, Barra de Salinas, Minas Gerais, Brazil This specimen...Sierra Blanca, White Mountain Wilderness, Lincoln County, New Mexico At one time this spectacular locality...coal, the district is now down to one operating mine and probably that one will close in the not too...CT 19 38029 RHODONITE BOULDER Evelyn Creek Mine, Yukon Territory, Canada This large boulder of fantastic...38030 LARGE STROMATOLITE BOULDER Cliff Erie Mine, Minnesota, USA Stromatolites are the fossil remains of |  | | Report (issue) | | University Station Stop C1100 Austin, Texas 78712, USA W.D. Carlson Department of Geological Sciences Jackson...University Station C1100 Austin, Texas 78712-0254, USA M.C. Gilbert School of Geology and Geophysics University...University of Oklahoma Norman, Oklahoma 73019, USA J.G. Liou Department of Geological and Environmental...Room 118 Stanford University Stanford, California 94305-2115, USA S.S. Sorensen Department of Mineral...Smithsonian Institution Washington, DC 20560-0119, USA te THE GEOLOGICAL SOCIETY OF AMERICA® Special Paper |  | | Journal (issue) | | for gemologists and geoscientists. 244 p. 266 Gem News International Aquamarine with unusual etch features...Brilliance at the Natural History Museum of Los Angeles County • American diamonds at the Smithsonian • The GIA...Skalwold John I. Koivula soverlin@gia.edu Editors, Gem News Editor Gagan Choudhary Christopher M. Breeding...Timothy Adams Dorrit Jacob Karl Schmetzer San Diego, California Canberra, Australia Petershausen, Germany...Johnson Guanghai Shi Washington, DC San Diego, California Beijing, China Alan T. Collins Stefanos |
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California State Gem Mine, Santa Rita Peak, San Benito County, California, USA