 | | Journal (article/letter/editorial) | | of sapphires from a lamprophyre dike at Yogo Gulch, Montana, USA: Clues from their melt inclusions Aaron...of sapphires from a lamprophyre dike at Yogo Gulch, Montana, USA: Clues from their melt inclusions, LITHOS...Origin of sapphires from a lamprophyre dike at Yogo Gulch, 1 RI Aaron C. Palke1*, Nathan D. Renfro1... SC *aaron.palke@gia.edu Montana Bureau of Mines and Geology, Montana Tech, 1300 West Park Street...PT Montana, USA: Clues from their melt inclusions 59701 MA ABSTRACT Gem corundum (sapphire) has |  | | Book | | yofio THE 'âgreat AMERICAN SAPPHIRE ^ ^; 5 âA iw 1#^ 1#^ Si- /> \r^. v' V #W- « #" Stephen... Voynick 1 Yogo The Great American Sapphire Yogo The Great American Sapphire by Stephen M. Voynick... Stephen M. Yogo : the great American sapphire. Rev. ed. of; The great American sapphire. 1985. Bibliography:...Includes index. 1. Sapphire mines and miningâMontanaâ^Yogo Creek Regionâ History. 2. Yogo Creek Region (Mont...)âHistory. I. Voynick, Stephen M. Great American sapphire. II. Title. TN997.S24V69 1987 338.7â622384â0978662 |  | | Journal (issue) | | WASHINGTON May 2, 2009 9:00 am to 5:00 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...Howard 3 Some Zeolite Locations in Montana Part 4 - Eastern Montana - South Larry B. French HC 46 Box...Box 7204 Miles City, MT 59301 In southeastern Montana, zeolites occur in three different geologic settings:...bentonite deposits, lignite deposits, and Tertiary basin-filling sedimentary rocks. 2) As primary and secondary...specimens in the Montana Mineral Museum (MTMM) at Montana Tech. Analcime Carbon County: Sedimentary rocks |  | | Report (volume) | | Corundum Deposits of Montana By STEPHEN E. CLABAUGH ^ GEOLOGICAL SURVEY BULLETIN 983 * .^ A description...associated placer deposits___.______. ______ Yogo sapphire deposit. _________________________________________...setting. ______________________________________ Sapphire-bearing dike_---_-----___-_----_----_------__Sapphires...reserveS--_-_________-.-p-_ __-______--__ Missouri River sapphire deposits .-___________-____-________-_-._ Location...____________________________________ Roek Creek sapphire deposit. _ __________________________________ |  | | Journal (article/letter/editorial) | | symbol to promote outstanding aspects of their county or state. Approval is usually not difficult because...Corporation explored for copper in the Cerbat Mountains, Mohave County. They acquired mineral rights to two sections...Cochise County, and earned the nicksurrounding Mineral name of âTurquoise Park, Mohave County, Kingâ (Arizona...King(Blake 1858; Johnston Turquoise company man district, Mohave County, Arizona. John Betts photo. 1964). reputedly...with Mercator Mineral around Mineral Park, Mohave County. Turquoise has been Park Holdings Ltd. acquiring |  | | Journal (issue) | | area, San Americaâs Royal Gems â Montana and Yogo Sapphires Benito County, California; the group of sapGems...Mountain Mine, GranTantalizing Turquoise ite Country, Montana. Photos of gemstones Oregon Sunstone â A Rare and...Jewelry Industry 56 Two Decades of GIT's Ruby and Sapphire Color Standards Color Varieties of Gems â Where...Daniel Bronfen, Brazil Evan Caplan, USA Rocco Gay, Italy Sushil Goyal, USA Shahina Hatta, Hong Kong Dwarka...Thailand Immediate Past President Benjamin Hackman, USA Chief Executive Officer Gary Roskin ICA General Manager |  | | Journal (article/letter/editorial) | | Figure 1. Interior view of the Mineral Museum at Montana Tech. Pete Knudsen photo. Maine Mineral & Gem...Bethel, Maine 04217 cfrancis62@gmail.com MONTANA CRYSTAL MONTANA COLLECTORSâ N RENDEZVOUS 2019 o dues...Mineral enthusiasts from all over Montana meet annually as the Montana Crystal Collectors (MCC) on an early...Rendezvous. Knudsen is a retired professor and dean at Montana Technological University in Butte, so the event...from Boston to Butte and back to be immersed in Montana minerals for a day and a half. The only thing I |  | | Journal (article/letter/editorial) | | STONES GEORGE E. KOSEL, "Newsletter" The Bergen County Mineralogy and Paleontology Society, Inc. Downloaded...this month is Montana, which has two State Stones, the one being a State Gemstone, Montana agate, and the...the other being a State Gem, the Sapphire. Montana is the land of a world-famous variety of moss agate...agate known everywhere as "Montana agate". The agate is in the form of gray chalcedony nodules shaped somewhat...present scenes of black mossy inclusions resembling mountains, trees, ferns, bushes, lakes, clouds, figures |  | | Journal (article/letter/editorial) | | Melt inclusions in alluvial sapphires from Montana, USA: Formation of sapphires as a restitic component... Melt inclusions in alluvial sapphires from Montana, USA: Formation of sapphires as a restitic component...MANUSCRIPT Melt inclusions in alluvial sapphires from Montana, USA: PT Formation of sapphires as a restitic component...Drive, Carlsbad, CA 92008, USA 2 Montana Bureau of Mines and Geology, Montana Tech, 1300 West Park Street...Street, Butte, MT 59701, USA MA *aaron.palke@qm.qld.gov.au â Present address: D Queensland Museum, Brisbane |  | | Journal (article/letter/editorial) | | America, 5355 Armada Drive, Carlsbad, CA 92008, USA; apalke@gia.edu Received: 3 March...corundum deposits are typically divided into blue sapphire and ruby deposits. However, this classification...with rare rubies (secondary Montana sapphire deposits and Yogo Gulch in Montana as well as the gem fields...trace element profiles and inclusions in the blue sapphire/ruby assemblages in these deposits shows that...a spectacular ruby. Keywords: corundum; ruby; sapphire; gemology; geology of gem deposits 1. Introduction |  | Palke, Aaron C., Wong, Jacqueline, Verdel, Charles, Ăvila, JanaĂna N. (2018) A common origin for Thai/Cambodian rubies and blue and violet sapphires from Yogo Gulch, Montana, U.S.A.?. American Mineralogist, 103 (3) 469-479 doi:10.2138/am-2018-6164 | Journal (article/letter/editorial) | | rubies and blue and violet sapphires from Yogo Gulch, Montana, U.S.A.? Aaron C. Palke1,2,3,*, Jacqueline...proposed for volcanically transported ruby and sapphire deposits around the world. In this contribution...in blue to reddish-violet sapphires from Yogo Gulch, Montana, U.S.A., with rubies from the Chantaburi-Trat...The similarities between Thai/Cambodian rubies and Yogo sapphires suggest a common origin for gem corundum...ought to be used with caution. Keywords: Sapphire, ruby, Yogo Gulch, melt inclusions, corundum, gemology |  | | Journal (article/letter/editorial) | | Institute of Technology, Pasadena, CA 91125-2500 USA Abstract: Hydroxide bands arising from intrinsic...localities. The OH defects are most prominent in blue sapphire crystals, suggesting an association of OH with...phases and as a trace component of corundum itself. Belt (1967) described broad absorption bands combined...spectra of a ruby from Sri Lanka and a blue sapphire from Montana. Because the samples used in this study...bands at 3367, 3310, 3233, and 3185 cm-1 in a pink sapphire from Vietnam. The present study represents an |  | Filina, Maria I., Sorokina, Elena S., Botcharnikov, Roman, Karampelas, Stefanos, Rassomakhin, Mikhail A., Kononkova, Natalia N., Nikolaev, Anatoly G., Berndt, Jasper, Hofmeister, Wolfgang (2019) Corundum Anorthosites-Kyshtymites from the South Urals, Russia: A Combined Mineralogical, Geochemical, and U-Pb Zircon Geochronological Study. Minerals, 9 (4) 234 doi:10.3390/min9040234 | Journal (article/letter/editorial) | | Abstract: Kyshtymites are the unique corundum-blue sapphire-bearing variety of anorthosites of debatable geological...Russia. Their mineral association includes corundum-sapphire, plagioclase (An61â93 ), muscovite, clinochlore...cannot provide an unambiguous determination of sapphire origin. If it is true and zircons can be used...event at 290â330 Ma as recorded in zircon and sapphire zoning. On the other hand, Ti-in-zircon thermometer...are required. Keywords: blue sapphire; anorthosites; kyshtymites; sapphire geochemistry; IlmenogorskyVishnevogorsky |  | | Journal (issue) | | Heinz-Jiirgen Bernhardt, a n d Fred M o u a w a d The Yogo Sapphire Deposit Keith A. ~ ~ c h a l u k NOTES AND...KUDOS FOR "COLOR GRADING OF COLORED DIAMONDS" SAPPHIRE-BEARING ALKALI BASALTS I N NIGERIA Congratulations...occurrence of sapphircs and zircons of the Jemaa district, in central Nigeria. We coinpared the Jenlaa alkali...Froin our description, it is evident that the vast sapphire deposits in central Nigeria are not "a possible...bicolored corundum, with dark violet to almost black sapphire cores and ruby rims (figure 2). With heat treatment |  | | Book | | Montana Hodges Robert Feldman Shaded relief indicates terrain and slope. Second Edition Rockhounding...longitude numbers and grid ticks are GPS compatible. Montana Enhanced detail shows more symbols, labels, and...history Cover photos of Montana agate (front) and ammonite imprint (back) © Montana Hodges Cover design by...imprint of The Globe Pequot Press MONTANA Search for stunning Montana agate along the Yellowstone River...Spokane Bar Sapphire Mine. Help paleontologists excavate dinosaurs in Malta. Rockhounding Montana points the |  | | Journal (article/letter/editorial) | | found in dozens of states. There is a semicontinuous belt of amethyst occurrences, much of it of faceting...quality, in the foothills of the Appalachian Mountains, stretching all the way from Maine to Georgia...sporadic source of superb gem amethyst in the mountains just east of Phoenix, Arizona. Superb amethyst...Wilkes County, Georgia. The more familiar and more highly regarded gemsâemerald, diamond, sapphire, turquoise...fragments were found at Mount Mica, Paris Hill, Oxford County, Maine, in 1820 among the roots of a fallen tree |  | | Journal (article/letter/editorial) | | Queensland, New South 'Vales, Ceylon, Riam and Montana. Not only are many of these locations at great...the most famous sapphire deposits of the world is in the Yogo Gulch of the Judith Basin in l\1ontana. This...surroundings. According to early settlers in this district, the hated gopher and the lowly badger WE'rE'...the purpose of r-arrving on gold mining in this gulch. The~' spent some $40,000 to hring in an adequate...000,000 in sapphires and is far from exhausted. Montana State University These sapphires -are mined |  | | Report (issue) | | CONDITIONS IN THE LITTLE BELT MOUNTAINS FOREST RESERVE, :MONTANA, AND THE .LITTLE BELT MOUNTAINS QUADRANGLE...pis. 22. Forest conditions in the San Fmncisco Mountains Forest Reserve, Arizona, by J. B. Lei berg, T...Absaroka division of the Yellowstone Forest Reserve, Montana, and the Livingston and Big Timber quadrangles...conditions in the Little Belt Mountains Forest Reserve, Montana, and the Little Belt ~fountains quadrangle...conditions in the Little Belt Mountains forest reserve, Montana, and the Little Belt Mountains quadrangle, |  | | Journal (issue) | | Black Diamonds from Zimbabwe Characterization of Yogo Sapphires Synthetic Diamonds Chart 2018 GIA SYMPOSIUM...113 111 Summer Reading: Diamond Research, Yogo Sapphire, and Byzantine Garnet Duncan Pay FEATURE ARTICLES...Gemological Characterization of Sapphires from Yogo Gulch, Montana Nathan D. Renfro, Aaron C. Palke, and Richard...characteristics of this naturally vibrant blue sapphire. CHARTS 202 Features of Synthetic Diamonds Sally...natural âhorse conchâ pearls âą âGolden sheenâ star sapphire âą Cabochons from Crassostrea virginica shell âą |  | | Journal (article/letter/editorial) | | Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...there are two official state gemstones: agate and sapphire. An extensive body of gem and mineral literature...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University |  | | Report (volume) | | varieties.......---..-.-..-..-...-,.-..--..-.....Sapphire or gem corundum ........_...'...................of a gem..................................... Sapphire as a gem ......... ................_............the United States ......-.- -.....-...-...... Sapphire or gem corundum .--.-.----..--........--...................... Montana ....-.-.--........................................_.. Sapphire .............-...___..__._....._..._______..__._.____..._.____.' Montana .............................................. |  | | Report (volume) | | ............................................. Sapphire or corundum gems ....... ..-....................sapphires^......... ..........._............. ...... Montana sapphires ........ ..............................sapphires ...... _........................... Yogo Gulch sapphires ............................. ............................. ................. Macon County .........._. ...........,..-...........-.............. .......... .1...................... Clay County.. ............................................ |  | | Book | | - by richard w. hughes I - ,=: CJ? UBY & SAPPHIRE is a journey into one of mankind's most fascinating...than yawns is always a scarce item. But Ruby & Sapphire is just such a book-a rare combination of face...fun, the pertinent and che peculiar. Open Ruby & Sapphire and you seep into a secret world where, with each...amazing and colorful tales within. Bur Ruby & Sapphire is also 1nuch more. T he product of over 15 years...a virtual encyclopedia of the subject. Ruby & Sapphire highlights: âą Side-by-side photos illustrate color |  | Peucat, J.J., Ruffault, P., Fritsch, E., Bouhnik-Le Coz, M., Simonet, C., Lasnier, B. (2007) Ga/Mg ratio as a new geochemical tool to differentiate magmatic from metamorphic blue sapphires. Lithos, 98 (1) 261-274 doi:10.1016/j.lithos.2007.05.001 | Journal (article/letter/editorial) | | blue sapphires 17 â Rio Mayo (Colombia) 18 â Yogo Gulch (USA) Detection limits (ppm) Ga Ti V Cr 14/4...al. / Lithos 98 (2007) 261â274 Magmatic blue sapphire from alkali basalts 1 â Pailin (Cambodia) 2 â...blue sapphires 17 â Rio Mayo (Colombia) 18 â Yogo Gulch (USA) Detection limits (ppm) ±1Ï 2 Average (ppm)...al. / Lithos 98 (2007) 261â274 Magmatic blue sapphire from alkali basalts 1 â Pailin (Cambodia) 1.4...98 (2007) 261â274 Fig. 1. Location of the blue sapphire deposits sampled for this study (numbered localities |  | | Report (volume) | | changed by heat treatment or dyeing. Only the ruby, sapphire, spinel, emerald, rutile, and quartz of gem quality...these qualities. The diamond, emerald, ruby, and sapphire are considered precious gems. Some opal is precious...pigeon-blood red in the ruby; cornflower blue in the sapphire; and grass green in the emerald. Most diamonds... ruby, garnet, and rose tourmaline; the term "sapphire," to lapis lazuli and other blue stones; the term...for colored stones, such as the emerald, ruby, sapphire, and garnet, but is now used only for-sta-rstones |
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Yogo Gulch, Yogo District, Little Belt Mountains, Judith Basin County, Montana, USA