 | | 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...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...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | | Journal (article/letter/editorial) | | Amethyst Mine RUSS HAGE 701 Lolo Street Missoula, Montana 59802 dukbstr@aol.com MICHAEL A. MENZIES Unit...Alberta Canada T3B 4T7 mmenzies@shaw.ca Jefferson County, Montana P erched high on the south-facing side...steep ridge just east of the continental divide in Montana is the Little Gem amethyst mine. It is an imposing...the southern boundary of the Boulder Batholith in southwestern Montana. Map prepared by William Besse...southern extremity of the well-mineralized Boulder Batholith where those prospectors were seeking mineable |  | Lund, Karen, McAleer, Ryan J., Aleinikoff, John N., Cosca, Michael A., Kunk, Michael J. (2018) Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic lodes overprinted by younger stockwork Cu-Mo ores and penecontemporaneous Cu lodes. Ore Geology Reviews, 102. 666-700 doi:10.1016/j.oregeorev.2018.05.018 | Journal (article/letter/editorial) | | Manuscript Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic...J. Kunk, Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic...pertain. Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic...world-class deposits of the Butte mining district, Montana, USA, is deep pre-Main Stage porphyry Cu-Mo and overlying...dikes; 40Ar/39Ar and U-Pb geochronology; Butte, Montana, USA Highlights · 40 Ar/39Ar and U-Pb data reveal |  | | Journal (article/letter/editorial) | | McLarenDeposit, New World District,ParkCounty,Montana TODDW. JOHNSON ø ANDLAWRENCE D. MEINERT Department...rictnearCookeCity,ParkCounty,in south-central Montana. The depositishostedby gentlydippingmieriteanddolomitie...Introduction New World districtin south-central Montana(Fig. 8 km north of TI-IEMcLaren depositis one...replacementdepositsin the CookeCity, in Park County, Montana,and extends ø Presentaddress:NorandaExploration...HENDERSBN MBUNTAIN INTRUSIVE COMPLEX •--• COMPLEX HOMESTAKE INTRUSIVE \ •r• INTRUSIONS FISHER MDUNTAIN VOLCANICS |  | | Report (issue) | | the Basin and Boulder Mining Districts, Boulder River Watershed, Jefferson County, Montana Professional...the Basin and Boulder Mining Districts, Boulder River Watershed, Jefferson County, Montana Edited by David...historical mining in the Boulder River watershed, Jefferson County, Montana............................Geological Survey The Boulder River watershed study, Jefferson County, Montana ........................Fey, and Tracy C. Sole D9. Hydrogeology of the Boulder River watershed study area and examination of the |  | | Book (volume) | | brownish yellow octagonal calcite (21.30 ct), Montana; light yellow orthoclase feldspar (25.03 ct), Idaho;...Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal step cut violetish pink...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...oligoclase feldspar (5.04 ct), Oregon; and three Montana sapphires, violetish blue (2.52 ct), yellow (4...large-scale mining of sapphire-bearing gravels in Montana is beginning and is expected to produce large quantities |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted...Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite specimens | | | Book (volume) | | Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...oligoclase feldspar (5.04 et), Oregon; and three Montana sapphires, violetish blue (2 .52 et), yellow (4...large-scale mining of sapphire-bearing gravels in Montana is beginning and is expected to produce large quantities...Cantlin, Ellis, ID; Jeannette B. Carillo, Gen1 Center USA, El Paso, TX; Gary Christopher, The Prospectors Cache...Comnussion, Little Rock, AR; Richard W Hughes, Boulder, CO; Duane L. Johnson, Rocky Mountain Soapstone |  | | Book | | Geochemistry PUBLIC LIBRAHY Fort Wayne and Allen County, Indiana K STO 3 'S33 00148 .8060 N Digitized...structure) plus stishovite (high-density Si02), and albite to jadeite plus quartz. Assuming that the core...isochron lines are a plot of equation (2-23) and pass through a point P, which represents the ratios of...AGES FOR THE BUTTE QUARTZ MONZONITE, BOULDER BATHOLITH, MONTANA Radiogenic K2O Sample Mineral locality...Station %) Biotite Hornblende Hornblende Homestake Pass (weight I., M. R. Klepper, and J. D. Obradovich |  | | Journal (issue) | | 1924, p. 188). In Austria, euclase, together with albite, rutile and quartz, occurs in vugs within mica...bertrandite, muscovite and associated minor quartz and albite. The mica and bertrandite totally replace beryl...O'D. VAN LAER (W. C ) . Tourmalines of the Homestake Pass. Lapidary Journal, 33, 1, 58-64,6 figs, 1979...1979. Tourmaline has been found at the Homestake Pass, Butte, Montana, U.S.A. Crystals are black and found |  | | Journal (issue) | | consisted of the elements Na, AI, and Si, and hence was albite; the orange isometric crystals agreed with previous...1981, XVII, 8 551 FIG. 8. Large white cluster of albite crystals on which an orange spessartine crystal...Between the two needles is one of the clusters of albite. 25 x FIG. 11. Group of three large pseudohexagonal...highly unusual assemblage of guest minerals, namely: albite, gahnite, niobite, spessartine and tourmaline,...quite normal, but the association of mica with albite, spessartine and two varieties of the columbite |
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