 | | | | rounded, grey galena and surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized...in its chemical composition in minerals such as calcite, dolomite, and aragonite, or rocks such as limestone...Corundum, spinel, cuprite, rutile, cassiterite, calcite, aragonite, dolomite, siderite, rhodochrosite,...depth to the light reflected, e.g., aragonite, calcite Resinous: like gum resin secreted by trees, e.g...the softest) is as follows: | talc, 2 gypsum, 3 calcite, 4 fluorite, 5 apatite, 6 feldspar, 7 quartz, 8 |  | | Journal (issue) | | Flatirons Facets Flatirons Mineral Club of Boulder County, Colorado Volume 60, Number 2 The Flatirons Mineral...ask for directions to the elevator to get to the North Community Room for most of the meetings during the...Flatirons Facets, JanuaryâFebruary 2017 Page 3 North Table Mountain Field Trip Traditionally, our club...kicks off the field trip season with a trip to North Table Mountain outside of Golden to collect zeolite...cowlesite and levyne. The zeolite minerals, along with calcite, fluorapophyllite, and other minerals fill the |  | | Book | | its chemical co1nposition in 111inerals such as calcite, dolon1ite, and aragonite, or rocks such as li111estone...Corundun1, spinel, cupri te, rutile, cassiterite, calcite, aragonite, dolo1nite, siderite, rhodochrosite...depth to the light reflected, e.g., aragonite, calcite Resinous: like gun1 resin secreted by trees, e...the softest) is as follows: 1 talc, 2 gypsun1, 3 calcite, 4 fl uorite, 5 apatite, 6 feldspar, 7 quartz,...and pyroxene and three planes in fluo1ite and calcite. If the 1nineral does not have cleavage it has |  | | Report (issue) | | International, LLC P.O. Box 263, East Hampton, CT 06424, USA Phone 1.860.267.1512; fax 1.860.267.7225 www.lapisint...CHRISTIAN WEISE VERLAG, GERMANY AND LAPIS INTERNATIONAL, USA Tourmaline ⌠History ⌠Mineralogy ⢠Tourmaline............. 34 Bernhard Wohrmann ⢠News from the Star .................. 39 Joachim Zang, Alexander U...... 83 Europe (west) ...................... 85 North America ..................... 89 South America ...the old mine portal on the north side of the Himalaya Mine in San Diego County, CA. D. Sterrett photo provided |  | | Journal (issue) | | lead glassâfilled orange sapphire ⢠LPHT-annealed pink CVD synthetic diamonds ⢠Near-colorless melee-sized...Iridescent musgravite ⢠Catâs-eye phenakite ⢠Unusual pink sapphire bead ⢠Bicolor double-eye tourmaline 198...Diamond-bearing eclogite xenoliths ⢠Catâs-eye calcite from Pakistan ⢠Large chatoyant Brazilian emerald...Purple scapolite ⢠Synthetic star sapphire with diffusion-induced color and star ⢠Partially filled blue chalcedony...⢠Unusual combination of inclusions in synthetic star sapphire ⢠Diamond slices ⢠Large Namibian demantoid |  | | Journal (issue) | | Cave Puzzle. The Tri-state MiningDistrict in the USA is not quite such an exocic c" ,;0¡1 :\nd galena...- luclPink Diamonds, Scottish Geology Festival and the Joy...south-east Kansas (KA), south-west Missouri (Ml) and north-east Oklahoma (OK). Davidhas someclassicmineral...excellent crystaJs of sphalerite, dolomite and calcite (some crystals of the latter being over 60 cm long...some excellent specimens of galena, sphaleritc, calcite and dolomite (all very useful indeed for teaching |  | | Journal (issue) | | presentations and special reports|GIT Lab Updates|USA lifts ban on Burmese ruby and jadeite|Margaritologia...inclusions|Clinohumite from Vietnam|Lace opal from Utah, USA|Pollucite from Pakistan with polylithionite inclusions|Large...Pakistan|Quartzite and calcite bangles resembling jadeite|Large pink sapphire with diffusioninduced star|Mid-year 2016...poised to become a significant producer of rubies and pink sapphires. These rubies recovered from the Aappaluttoq...p. 287 ARTICLES Feature Articles 294 Ruby and Pink Sapphire from Aappaluttoq, Greenland By Christopher |  | | Catalog/List | | to the fur. Two pink tourmaline cabochons form the eyes and the rabbit holds a pink rhodonite carrot...nest, each having carved citrine beaks, cabochon pink tourmaline eyes, rimmed in gold. The nest is carved...beryl leaves and cherries rendered of carved hot pink tourmalines. Raised on a shaped base of smoky quartz...âFabergĂŠ was called the Benvenuto Cellini of the North, but I do not think any jeweler can ever be compared...mineralogy textbook authored by a citizen of the USA. The present, Brazilian specimen, is a classic mineral |  | | Book | | Instead of the usual opaque shapeless masses of green, pink or grey rock, it now appeared as transparent crystals...enhance the value of gemstones are the catâs-eye and star effects. These are produced in stones cut as cabochons...appearance of a four-, six- or even twelve-rayed star. These are the main characteristics which give gemstones...Minerals comprising Mohs' Scale 1 talc 2 gypsum 3 calcite 4 fluorspar 5 apatite 6 orthoclase 7 quartz 8 topaz...have stones cut from soft minerals, including calcite, dolomite, barite and many others. Provided such | | | Book | | Instead of the usual opaque shapeless masses of green, pink or grey rock, it now appeared as transparent crystals...enhance the value .of gemstones are the cat's-eye and star effects. These ar e produced in stones cut as cabochons...appearance of a four-, six- or even twelve-rayed star. These are the main characteristics which give gemstones...Minerals comprising Mohs" Scale 1 talc 2 gypsum 3 calcite 4 fluo rspar 5 apatite 6 orthoclase 7 quartz 8...have stones cut from soft minerals, including calcite, dolomite, barite and many others. Provided such |  | | Report (issue) | | other institu tions in Madagascar, Italy, and the USA. Several expeditions have continued the research...Munich, Germany P.O Box 263, East Hampton, CT 06424 USA Phone l -860-267-1512, Fax 1-860-267-7225 www.lapisint...mineralogy in Madagascar. Translation by Alfredo Petrov (USA), Federico Pezzotta (Italy), GUnther Neumeier (Germany)...WEISE VERLAG, MUNICH; AND LAPIS INTERNATIONAL; USA. extraLapis English No. I Madagascar Ores, Gold...Marosohihy 32 Marovoalavo (south) 28 Marovoalavo (north) 6 1 Masoala 40 Menazomby 43 Miakanjovato 44 Milanoa |  | | Journal (issue) | | 461 REGULAR FEATURES 474 Lab Notes Four-rayed star chrysoberyl ⢠Internal etch channels in diamond...catâs-eye emerald ⢠A âcobalt blueâ gahnospinel ⢠Calcite found on the surface of a saltwater ânacreousâ...demantoid ⢠âGalaxyâ inside a diamond ⢠Omphacite in pink diamond ⢠Aegirine in poudretteite from Myanmar...Mouawad Campus 5345 Armada Drive Carlsbad, CA 92008 USA Š 2022 Gemological Institute of America All rights...in Mogok ruby in Mogok ruby samples, including calcite, mica, spinel, samplesâŚwere sensitive to heat treatment |  | | Journal (article/letter/editorial) | | which has implications for the assembly of the north Australian cratonic 2- Regional Geology of the...between the Kimberley Craton to the northwest and the North Australian Craton to the east, as well as the deformed...Ramsey Range and Springvale faults and (in the far north) by the Halls Creek Fault (Fig. 1). The oldest ...D 5a). Convergence of the Kimberley Craton and North Australia Craton during the 1870-1850 PT E Ma...considered to represent suturing of the Kimberley and North Australian cratons (Sheppard et al., 2001; Sheppard |  | | Book (edition) | | : Decorative or âGems and Precious Stones of North and H. A. Miers. Natural The of South Africa... Indigo blue. Bluish green. pink. Rose . yellow . white pink. Sea green. Grey blue. Azure...which is â Apatite ⢠5 Fluorspar ⢠4 . 8 Calcite ⢠7 6 serve the â 3 ⢠Hock salt or Gypsum...None 7 7i 7I IO 3'57 8 4âoo 9 4' 75 7i PINK STONES. STONES. PLEOCHROISM. Tourmaline 3'°5... are facets 58 the widest of eight 66 the star facets. proportions, brilliant-cut not only |  | | Journal (issue) | | REGULAR FEATURES 72 Lab Notes Purple anhydrite ⢠Pink pyrope garnet ⢠Libyan Desert glass bangle ⢠Atypical...acquisitions by the Kreises ⢠Double pseudomorph ikaite-calcite-opal ⢠Cultured pearl market update ⢠Edison pearls...rhodochrosite ⢠New tourmaline find in San Diego County ⢠Vibrant green âTransvaal jadeâ ⢠Misfit Diamonds...Heated purplish pink sapphire with monazite inclusions ⢠Chromophores in irradiated pink sapphire Editorial...Mouawad Campus 5345 Armada Drive Carlsbad, CA 92008 USA Š 2023 Gemological Institute of America All rights |  | Hertzberg, Jennifer E., Schmidt, Matthew W., Bianchi, Thomas S., Smith, Richard W., Shields, Michael R., Marcantonio, Franco (2016) Comparison of eastern tropical Pacific TEX86 and Globigerinoides ruber Mg/Ca derived sea surface temperatures: Insights from the Holocene and Last Glacial Maximum. Earth and Planetary Science Letters, 434. 320-332 doi:10.1016/j.epsl.2015.11.050 | Journal (article/letter/editorial) | | TX 77843, USA Department of Marine Science, University of Connecticut, Groton, CT 06340, USA Department...23529, USA d Department of Geological Sciences, University of Florida, Gainesville, FL 32611, USA e Global...Global Aquatic Research LLC, Sodus, NY 14551, USA f Department of Geology and Geophysics, Texas A&M University...University, College Station, TX 77843, USA b c a r t i c l e i n f o Article history: Received 26 August...Point, 1080 Shennecossett Road, Groton, CT 06340, USA. Tel.: +1 (860) 405 9027. E-mail addresses: jennifer |  | | Journal (article/letter/editorial) | | Earth and Planetary Sciences, Macquarie University, North Ryde, NSW 2109, Institute for Geosciences, Johannes...Antarctica and both Australia and India, as well as the North Atlantic Craton, which is 2 ACCEPTED MANUSCRIPT...al., 2016). In the Labrador Sea area where the North Atlantic Craton split, aillikites, kimberlites and...slightly to the left of the aillikite array (pink star in Fig. 12). The low Mn/Fe signature of the aillikite...trace elements is more intractable at present: calcite, dolomite and magnesite have Fe and Mn as minor |  | | Journal (issue) | | Full-Day Sponsor, Monday, August 28 H2 Events SAFDICO USA INC Cappuccino Kiosk Full-Day Sponsor, Tuesday...cushion cut, an 11.25 ct hot orangy pink round, and an 11.40 ct pink oval. Photo by Robert Weldon; courtesy...its blue and pink siblings in recent years, even though it has the same potential. Pink sapphires, along...with other pink gems, gained momentum due to the publicity surrounding celebrity-worn pink diamonds. Yellow...heat-treated ruby, though this situation is changing. Pink and blue spinels are also gaining ground on other |  | | Journal (issue) | | 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...31 W. 47th Street, Suite 1103 New York, NY 10036 USA ica@gemstone.org T: 1.212.620.0900 F: 1.212.352.9054...The Goldrop method had previously been tested by North American gold mining prospectors, who said the processor... 13.5 cm tall. William Willes #1 Quarry, Topsham, Sagadahoc County, Maine. (Photo: Mark Mauthner) Rose |  | Manalo, P. C., Dimalanta, C. B., Villaplaza, B. R. B., Brown, W. W., Yumul, G. P. (2017) Magnetic Exploration of Structurally Controlled Mineralization at Low Latitudes: A Case from the Masara Gold District, Mindanao, Philippines. Economic Geology, 112 (7) 1807-1817 doi:10.5382/econgeo.2017.4530 | Journal (article/letter/editorial) | | et al., 2003). (B) The Masara gold district (pink star) is located on Mindanao Island, southern Philippines...and are mostly altered to epidote, chlorite, and calcite. The Lamingag Intrusive Complex consists of diorite...(quartz + kaolinite + magnetite + dickite Âą illite Âą calcite) affecting mainly the Cateel Quartz Diorite has...is present as fine to coarse crystals in quartz-calcite gangue and commonly occurs with pyrite and, to...line km were flown 40 m above canopy following a north-south flight direction. Flight lines were 60 m apart |  | | Book (edition) | | Toms Ring⢠gemstone set with a padparadscha (orange-pink sapphire). Sapphire designed and cut by Glenn Lehrer...Publications P.O. Box 13384 Los Angeles, CA 90013-0384 USA (Inquiries should be accompanied by a self-addressed...Color 44 How Lighting Affects Ruby Color 45 Ruby or Pink Sapphire? 46 Describing Rubies by Place of Origin...Detecting Synthetic Emerald, Ruby and Sapphire 14 Star Rubies & Sapphires Judging Quality 137 Genuine and...includes aquamarine. Other beryls are yellow, orange, pink, reddish or colorless. \ The rich history of the |  | | Journal (article/letter/editorial) | | further note a drought event throughout East Africa north of 10⌠S around 8.2 ka, which may have been related...Period (AHP; deMenocal et al., 2000), extends from North Africa to as far south as 10⌠S in East Africa (Gasse...Lake Chew Bahir and Lake Suguta, located to the north and south of the Lake Turkana (Foerster et al.,...marine record. Core GeoB12605-3 is indicated by pink star. (For interpretation of the references to color...in the target region is mainly inďŹuenced by the north-ďŹowing East African Coastal Current (EACC), which |  | | Journal (issue) | | Chairmen: Midlands Branch: D.M. Larcher, FBHI, FGA North-West Branch: W Franks, FGA Examiners: A. J. Allnutt...with tin and columbite, in the Younger Granites of North 197 J. Gemm., 1990,22,4 Nigeria has been described...wife has a tourmaline necklace which has yellow, pink, green, blue and purple-red beads, and this appears...bluegreen beads as emerald, simply because they looked pink through the Chelsea Filter. The bracelet was in...Pforzheim, FRG; FRG; Mr R. E. Kane of Santa Monica, USA; Dr J. Kanis of Cascais, Portugal; Mr E. Petsch of |  | | Book (edition) | | the MPG Books Group Ltd, Bodmin and Kingâs Lynn NORTH GLASGOW COLLEGE SPRINGBURN LIBRAR Y Contents Preface...of 12 756km. It is the third planet out from the star we refer to as the Sun. Earth is the fifth largest...general appearance â for example, yellow sapphire and star ruby. Gems can be found in: (1) primary deposits...attacked by acids, such as CaCO;, the mineral calcite. Phosphates are formed by the action of phosphoric...Left to right: rhombohedron â calcite; prism and rhombohedron - calcite; and hexagonal prism, major rhombohedron |  | Zhang, Yunying, Yuan, Chao, Sun, Min, Li, Jie, Long, Xiaoping, Jiang, Yingde, Huang, Zongying (2020) Molybdenum and boron isotopic evidence for carbon-recycling via carbonate dissolution in subduction zones. Geochimica et Cosmochimica Acta, 278. 340-352 doi:10.1016/j.gca.2019.12.013 | Journal (article/letter/editorial) | | andesites and adakitic andesites from the Chinese North Tianshan, which represent partial melts of fluid-modified...andesites and adakitic andesites from the Chinese North Tianshan, aiming to (1) test the carbonate dissolution...south and Junggar terrane in the north (Fig. 2), the Chinese North Tianshan arc system is made up of...(Windley et al., 1990). On the south of the Chinese North Tianshan arc system, the Dananhu terrane consists...compositions for the Hongliuxia andesites from the Chinese North Tianshan, together with previously reported major |
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