 | | Journal (issue) | | Wallowa Co., Oregon Fig. 2. Vesuvianite Mono Co., California 5 corresponding mineral is hedenbergite, CaFeSi2O6...from the Morris Claim, Benton Range, Mono Co., California illustrated in fig. 2. The prisms are striated...Riverside Co., Bruce Canyon, Lemhi Co., Idaho California known collectively as Crestmore. This is a magnesium...Pyrrhotite Geikielite Jensen Quarry, Riverside Co., California Spinel 6 Fig. 5. Titanite and epidote in...Calaveras Co., California Fig. 7. Glaucophane in clinozoisite Valley Ford, Sonoma Co., California 7 Fig |  | | 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 | | | 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) | | CHARMED BY CHERT A MOTHER ROCK FOR THE AGES ROCK & GEM • Vol. 50 No. 3 • U.S. $5.99 Issue Code: 2020-03...Montana’s capital city, is partnering with The Carter County Museum in Ekalaka – dinosaur fossils from within...Tradition And ‘Living the Dream’ at Wild Turkey Mine 20 cherishing chert A Mother Rock for the Ages...Bench Tips ............................... 18 Rock & Gem Kids ..................... 40 Club Corner .........Crystallized Gold Bob Jones SUBSCRIPTION QUESTIONS? Rock & Gem (ISSN 0048-8453, USPS 486290) is published monthly |  | | 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 |  | | 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) | | 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 |  | | Journal (issue) | | gemstone evaluation. From convenient locations in major gem centers, to frontline detection of emerging treatments...Uranium mineral as inclusions in turquoise 296 Gem News International Update on benitoite • Large cat’s-eye...from India • Emerald mining techniques at the Kagem mine, Zambia • Yellow grossular from Tanzania • An unusual...Basel, Switzerland James E. Shigley Carlsbad, California E. Alan Jobbins Caterham, UK Thomas M. Moses...Smith New York, New York Mary L. Johnson San Diego, California Mark Newton Coventry, UK Wuyi Wang New |  | | 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 |  | | 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 |
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California State Gem Mine, Santa Rita Peak, San Benito County, California, USA