 | | Book | | Vojany, Slovakia) Head of the Department of Natural History, Eastern Slovak Museum, Košice He finished...His Ph.D. study was at the Technical University, Košice (1992). Until 1990, he worked at the Dionýz Štúr...(1983). Ph.D. study at the Technical University, Košice (2000). Since 1980, he was employed in the Herman...Poland (Ewa Kos/.owska) Romania (Gheorghe Udubasa) Slovakia (Rudolf Duda) Ukraine (Orest Matkovs'ky) 31 31...(Ewa Kos/.owska). Romania (Gheorghe Udubasa), Slovakia (Rudolf Duda). Ukraine (Victor Kvasnytsya) 127 | | | Book | | .......................................... 52 Slovakia ( Rudo lf Ducfa) ...............................(Ewa Koszowska). Ro mania (Gheorghe Uduba~a), Slovakia (Rudolf Ducfa). Ukraine (Victor Kvasnytsya) Native...wa especially rich in specimens from the Banal region and Gutiii Mts. (fu loppite was named in his honor)...detailed. unified mineralogical encyclopaedia of the region had been planned by the Commi!.sion on Mineralogy...Verde§ (Gold Museum. Brad) - for photography. Slovakia: Eva Sitasova (Eastern Slovak Museum. Kosice) |  | | Report (issue) | | Contents 4 Map: Notable Opal Localities 50 BY BRUCE PAUL GABER 6 The Opal Enigma: Science, History...FRAZIER 12 Classic Slovakia 14 Rainbows, Harlequins and Pins Afire: Play of Color in Opal BY MAX WEIBEL...WEIBEL Sparkling Opal in Ancient Bones: Precious Relics from the Age of Dinosaurs Facing Page: Robert A....vibrant with opal pattern and color. In this extreme close-up of a Lightning Ridge black opal, the field...approximately 3 mm wide. Opal courtesy Jenni Brammall BY ALEX RITCHIE 52 An Opal Glossary of Terms BY |  | | Journal (issue) | | (20-two dimensional discrimination) 4 FROM OPAL OBSESSION TO OPAL PROFESSION The definitive story of what...what happens when you really catch opal fever 8 IN PERSON Each issue Gold Gem & Treasure will profile...this part of NSW 36 BOTTLES OF YESTERYEAR Part 2 Cinnabar takes a close look at a couple of goldfield favourites...publisher. AUSTRALIAN GOLD GEM & TREASURE 3 FROM OPAL Opal was discovered in Coober Pedy in 1915. The author...Australia has arguably the largest known deposit of opal in the world. Before we left we told some friends |  | | Book | | rocks and minerals. dealing with their formation, occurrence and the qualities to note when making an identification...lustre.) Resinous the lustre of resin, as in amber, opal and some Pearly Silky Greasy Earthy varieties...barvlc, which contains barium. Introduction FIELD OCCURRENCE OF MINERALS All rocks are made up of minerals...physical and chemical damage. Softer gemstones. such as opal and peridol (olivine), are likely to lose their...u,.,,J to class,fy ,gneoo, rocts, The ,Ml eront region, |  | | Book | | molecular structure and interaction from this region. Courtesy Gene Meieran. (the behavior of the electrical...similar to granite. Specific gravity: 2.8-3.0. Occurrence: nice specimens from Kern and Tuolumne counties...sometimes discover the gem minerals beryl., corundum., opal, spodumene, topaz, tourmaline, and zfrccn. View...long. The pegmatites of PERIDOTITE the Pala district of San Diego County, rock, generally dark green...Mount Vesuvius erupted on Au¬ tals, chalcedony, or opal (for example). So- gust 24, 79 A.D. This eruption |  | | Book | | the earlier history, indeed the prehistory, of a region. Conglomerates speak of a time when high nearby...fair base. Fracture: shell-like, uneven. Red CINNABAR Color: scarlet to dark red. Luster: nonmetallic...Fracture: curved like the interior of a shell. OPAL Luster: vitreous, resinous, pearly. Hardness:... good prismatic. Fracture: CRYOLITE uneven. OPAL Luster: glassy or greasy. Hardness: 2: Cleavage:...Fracture: Luster: uneven. uneven shell-like. OPAL vitreous, resinous, pearly. SAPPHIRE is the transparent | | | Book | | wellfarmed, but clouded, aquamarine crystals from this region. CourteJy Gene Meieran. Photo by Jeff Scovil. ...similar to granite. Specific gravity: 2.8-3.0. Occurrence: nice specimens from Kern and Tuolurnne counties...sometin1es discover the gem minerals beryl, corundurn, opal, spodumene, topaz, tourmaline, and zircon. Pegmatites...ickand over a mile long. The pegmatites of the Pala district of San Diego County, California, are famous for...with linings ofamethyst crystals, chalcedony, or opal (for example). Socalled "thundereggs" are geode |  | | Book (edition) | | III there is an elementary discussion of the occurrence, This includes a brief descripand association...(Glass and Hydrocarbons) PART 413 III THE OCCURRENCE, ASSOCIATION, AND ORIGIN OF MINERALS A. General...Verlagshandlung, Stuttgart, 1905. PART III THE OCCURRENCE, ASSOCIATION, AND ORIGIN OF MINERALS BECK (WEED):...determined, there yet remain the facts of its occurrence and association, and the problem of its origin... among which ore-deposits are prominent. The occurrence of certain minerals in certain rocks and mineral |  | | Book (volume) | | El Paso, Texas. Information on the Virgin Valley opal deposits was given by G. Keith Hodson of Scottsdale...Alaska, provided data on gemstones found in that region; the Southern Onyx and Marble Company of San Diego...well-known Texas agate localities of the Alpine Region were described in detail by J. Frank Woodward...photographs illustrating scenes and gemstones of this region were generously provided by George Ashley and Roy...Diamond, Corundum (Ruby and Sapphire), Beryl, Topaz, Opal. IMPORTANT GEMSTONES The Feldspar Group, Spodumene |  | | Report (Issue volume) | | Wales Portion) VOLUME 2 MINERAL OCCURRENCE DATA SHEETS, AND OCCURRENCE LISTS R.E. Brown, H.F. Henley..................................... 3 MINERAL OCCURRENCE SYMBOLS .......................................deposits are illustrated on Map 1. Details of each occurrence are summarised on the following mineral deposit...affected q e x k h u g d o h r a t b v h MINERAL OCCURRENCE SYMBOLS A non-standard set of symbols has been...symbol. The symbol and occurrence number are plotted at the mineral occurrence locality on the face of |  | | Book (volume) | | certain other areas, as around the Great Lakes region. Numerous small discoveries of gem materials took... Map of kimberlite fields in Wyoming-Colorado region........cccsscsseeeseeeeseens 130 Figure 28. ...containing natrolite crystals... 236 Figure 49. Map of opal mine locations, Virgin Valley, Humboldt County,... Map of amethyst mine locations, ‘Thunder Bay region of Ontario................. 310 Figure 64. View...suite 7. Spessartine garnet necklace 8. Precious opal 9. Black pearls 10. Chrysocolla chalcedony |  | | Report (volume) | | MINES With a section on the THUNDER MOUNTAIN DISTRICT By B. F. LEONARD, U.S. GEOLOGICAL SURVEY, and...______________________ Salmon River district ____________________________ Chamberlain district _____________________________..._______ Edwardsburg district _____________________________ Ramey Ridge district ____________________________...________ Big Creek district ______________________________ Middle Fork district _____________________________...____ Monumental Creek district _________________________ Marble Creek district ____________________________ |  | | Book (edition) | | regularity of crystals. [A few minerals, such as opal, are not crystalline initially but become at least...localities but not at others, and an individual occurrence of an ore mineral might change with time from...Chapter 5, "The Genesis of Minerals," and the occurrence data given in the mineral descriptions in Chapters...if the symmetry axes are the a-quartz (low), cinnabar 6 6 6 6 Ditrigonal Pyramidal (Hemimorphic)...diagnostic of this class. It should be noted that the occurrence of striations on the faces of s{l 121} or 's{2111} | | | Book (volume) | | certain other areas, as around the Great Lakes region. Numerous s1nall discoveries of gem materials took... Map of kimberlite fields in Wyoming-Colorado region.................................. 13 0 Figure.......................... 236 Figure 49. Map of opal mine locations, Virgin Valley, Humboldt County,...63. Map of amethyst nune locations, Thunder Bay region of Ontario................. 310 Figure 64. View...suite 7. Spessartine garnet necklace 8. Precious opal 9. Black pearls 10. Chrysocolla chalcedony |  | | Book (volume) | | VOL.2 Bauer, Max Precious stones J FOX LAKE DISTRICT LIBRARY 2§| £ J3RAND AVENUE 60020 - PRECIOUS...STONES A POPULAR ACCOUNT OF THEIR CHARACTERS, OCCURRENCE AND APPLICATIONS WITH AN INTRODUCTION TO THEIR...STONES PACE D. Occurrence of Precious Stones I. NATURAL CHARACTERS AND . . G8 OCCURRENCE A. Chemical...Char¬ acters .138 CONTENTS VI TAGE TAGE Occurrence of Diamond 1. India .... 2. Brazil .... 3. South...Melanite, Topazolite . Tourmaline Opal Precious opal . Fire-opal Common opal . Turquoise . Bone-turquoise |  | | Report (volume) | | 814 GEOLOGY AND ORE DEPOSITS OF THE WOOD RIVER REGION, IDAHO BY JOSEPH B. UMPLEBY, LEWIS G. WESTGATE...Minnie Moore and near-by mines, Mineral Hill mining district, Blaine County, Idaho, by D. F. Hewett-____--_-____...geologic, and claim map of the Mineral Hill mining district----____-__----_________-_._________ In poaket...poaket. 10. Map of the Warm Springs mining district and adjoining parts of Alta and Little Wood River mining...______ 3 2. Columnar section in the Wood River region _______________ 10 3. Geologic map of upper Lake |  | | Journal (entire run) | | shell on the front cover is from the Coober Pedy opal fields, South Australia. The 10-ounce gold crystal...Deposit, S.A. - W.R. Ryall and E.R. Segnit Precious Opal in the Warrumbungles - J.V. Sanders Lunar Minerals...CL. Morvell Lithiophorite from the Kalgoorlie District, Wes tern Australia -1. Ostwald That Elusive Stichtite...Stichtite - Keith Lancaster On the Genesis of Volcanic Opal at Houghlahan's Creek near Teven-Tintenbar, N.S...Pseudomalachite from Near Tottenham, N.S.W. - DH. McColl ---Occurrence of Ferrierite from the South Coast Area, New |  | | Report (issue) | | INTRODUCTION. reports are those on the Mercur district, by J. E. Spurr and S. F. Emmons; the Bingham...Bingham The senior author, J3. S. Butler, began district, by J. M. Boutwell, Arthur Keith, and field work on...deposits of Utah in the S. F. Emmons; the Park City district, by J. M. FIELD .WORK AND AUTHORSHIP. summer...the Plateau region. The junior author, G. F. Loughlin, began work in the Tintic district in 1911 in collaboration...the Tin tic and Thomas ranges, of the Leamington district, and of districts in theW asatch Range. Several |  | | Report (issue) | | - - - · - - · - - - - - - · · - - - - - · 85 Occurrence .......................... - .. - . - ... - -...... ---.----.---.--.---------------- - -· 86 Occurrence ............................... ___ ... __ ....__________________________________________ -. _.- _.-- _- _86 Occurrence _________ ... _. __ ........ _. __ ..... _.....______ ... _. _. _______ .- .... _. _.. ____ _ 88 Occurrence _________ ... _. __ . __ .. _.. __ . ___ . _...___ .. __. _. _____ _ 89 General character and occurrence ___ . ___ ·... _. ____ ... ___. _. _. __ . _____ |  | | Other Paper | | information Mineral Occurrence Number Name Alternative name Location Distance Constituency District Province Development...ISOKA 8877800 ISOKA DISTRICT 8877800 24 KM. E. OF ISOKA 8877800 ISOKA DISTRICT 8877800 24 KM. E. OF...OF ISOKA 8877800 ISOKA DISTRICT 8877800 24 KM. E. OF ISOKA 8949330 BORDERS ON THE SE SHORE OF LAKE MWERU...UTMZ UTMEast UTMNorth Locality Distance Provin District KAPUTA Diamond 1 MWERU WANTIPA 36 169666 9059231...N MPOROKOSO Appendix IV-3 (1) Duplicates for Occurrence name and coordinates 104 282748 282748 291618 |  | | Report (volume) | | Devonian development diagram Direcci6n Dissertation district distribution division Doctoral, Document Doctoral... 1. Stratigraphio paleontology of Camaguey district, Cuba: Am. Assoc. Petroleum Geologists Bull...37-38, 1947. 2. (and Harris, R. M.). Subsurface occurrence of Cretaceous sediments of Mississippi [abstracts]:...Vernon Edward). Nontronite in the Columbia River region: Am. Mineralogist, vol.-31, nos. 5-6, p. 294-312...Richard). Lead-zinc mineralization in the Moyie Yaak district near Bonners Ferry, Boundary County [Idaho]: Idaho |
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