 | | Book | | and Tie Pin amethyst are called ametrine. • Occurrence Amethyst is found .Amethyst jewelry- was popular...determined by the way light is reflected from hematite crystals, like pyrite and the precious metals...iridescence, shown by a number of other gems such as hematite, labradorite, and iris quartz. In moonstone...opalescence, or Iridescence a schiller (sheen). hematite shows a play of color and green may predominate...citrine, beryl, peridot, garnet, lapis lazuli, and hematite, as well as organic materials such as ivory and |  | Bailey, David G., Lupulescu, Marian V., Darling, Robert S., Singer, Jared W., Chamberlain, Steven C. (2019) A Review of Boron-Bearing Minerals (Excluding Tourmaline) in the Adirondack Region of New York State. Minerals, 9 (10) 644 doi:10.3390/min9100644 | Journal (article/letter/editorial) | | Mountains; Grenville Province; boron minerals; danburite; datolite; dumortierite; grandidierite; harkerite;...history. Spectacular, well-formed crystals of danburite and tourmaline from northern New York have been...standards, including Mg, Al, Si, Ca, and Fe. For danburite, Si and Ca were used as an internal standard and...Russell St. Lawrence Macomb St. Lawrence Dekalb St. Lawrence Diana Lewis Russell St. Lawrence...Macomb St. Lawrence Fowler Dekalb Schroon Lake St. Lawrence St. Lawrence Warren Danburite CaB2 Si2 |  | | Journal (issue) | | 3.00 HEMATITE, Cumberland. Brilliant small black x:s. on mass. 4x2 ......... . 3.00 HEMATITE, Mte. S:>mma... SOUTH GREENLAND. By A. /. Bo11cot ...... 35 DANBURITE LOCALITY NEAR RUSSELL, N . Y . By Wallace Clark...of Rock1 a,ul Minera/J sure was a fine one. Too bad my attention to this fine article was not called...announct• ment has recently been made of tht occurrence of uranium as a very min• or constituent of the...vanadium content and where the Manhattan Engineer District purchased by-product uranium during the war, private |  | | Report (volume) | | Cassiterite lode; B, Surface exposure showing occurrence of fluorite silicate rock adjoining veinlets...Geological Survey in 1900 the tin deposits of this district have been discussed in several Survey publications...that were incidental to other work, and as this district had attracted much notice as a possible source...time permitted, to determine the laws of their occurrence and origin. It was thought best to emphasize...analysis of these data, will have more value to the district as a whole than any attempt to publish a statement |  | | Journal (issue) | | Gem-Quality Synthetic Emeralds A New Source of Danburite from Vietnam A Chart of Emerald Inclusions Winter...their development. pg. 371 393 A New Find of Danburite in the Luc Yen Mining Area, Vietnam Le Thi-Thu...recently discovered eluvial deposit of honey yellow danburite with excellent transparency. CHARTS pg. 394 ...fascinating detective story, too. Until recently, danburite was an underappreciated gem, but new sources are...characterize a promising find of gem-quality danburite from Yen Bai Province, Vietnam. Our fourth article |  | | 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...author, G. F. Loughlin, began work in the Tintic district in 1911 in collaboration with Waldemar Lindgren...the Tin tic and Thomas ranges, of the Leamington district, and of districts in theW asatch Range. Several |  | | Journal (issue) | | Limoeiro Mine, Virgem da Lapa, Ara~uaf Pegmatite District, . Minas Gerais, Brazil, Michael A. Menzies Signature...5 cm, Limoeiro mine, Virgem da Lapa, Ara<;uar district, Minas Gerais, Brazil; private collection, Jeff...• Markus Raschke - The South Platte Pegmatite District of Colorado: New Insights into Mineralogy, Petrogenesis...and mineral specimens are of more constricted occurrence. Important gem- and specimen-productive pegmatite...phenomenal aquamarine specimens from the Skardu district, Pakistan. Because of their relative importance |  | | Report (issue) | | Professional Paper 177 THE GOLD HILL MINING DISTRICT U'TAH BY T. B. NOLAN UNItED STATES GOVERNMI£NT...______ ___ ___ ___ _ __ ____ ___ ______ Clifton district _ _ __ History of mining and production__ ___...119 II Mines and prospects-Continued. Clifton district-Continued. Mines and prospects-Continued. Veins...Evans__________ _________________ Willow Springs district. ____ __ _ __ ___ _ ____ ___ History and production_________...exposed. Differ large intrusive masses. In this district many of these steps ences in the metamorphism |
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