 | | Journal (article/letter/editorial) | | information: "Here is an account of a fine occurrence of turquoise which due to war-time gasoline restrictions I...specimen for identification. I found it to be turquoise and requested a larger specimen if possible for...northeast of Erin, Clay Co., where turquoise is found as thin veins in graphite schists (Carboniferous). The...Please Send Them In. calcite from the West End quarry, Inyo Co., Calif., and the other is a bluishwhite...Can anyone supply information on the occurrence? District oí Columbia—On a recent visit to Washington, the |  | | | | element. Gold, copper, silver, platinum, bismuth and graphite fall in this subdivision. Sulphides and arsenides:...azurite, gypsum, anhydrite, baryte, apatite, turquoise, borax, ulexite are species in this category....description is not clear, e.g., submetallic, for graphite. Adamantine: brilliant, hard, durable, e.g., diamond...yellow), p. 50 chalcocite (dark grey), p. 34 | graphite (steel grey, black), p. 30 | stibnite (lead grey)...‘Soft(Mohs 1-2) ‘Black Hard (Mohs more than 51) graphite (black),p. 30 pyrolusite (grey to black), p. 82 |  | | Journal (article/letter/editorial) | | MINES AND MINERALS OF AUSTRIA By P H I L I P M O R R I L L East Derby, N . H., 0 3 0 4 1 ( P A R T III)...16 Miles Do not scale. Uooer Austria Altaussee tsch# Lower Austria Yugoslav! VII STYR1A ROCKS AND...% " to 2" termin ated) ( N H W ) Kaiserberg. Graphite M. (current). Lig nite M. Fohnleiten. Coal M...Oberzeirmg. Old silver M . (not Op.). 'Zeiringite' (turquoise blue) (Auri chalcite in Aragonite); Bundheimite...Rattan-Lazurite. 294 Fischbach-Lazulite. St. Lorenzen. Graphite. Nr. Yugoslavia. Vorau b Graz-Lazulite X l s |  | | Book (edition) | | optical axes) crystals. Left: Creme to light turquoise colour shades in a marcasite aggregate due to...of pyrite (creme) is much higher than that of graphite (brownish grey), which shows grooves at the contact...main axes of the lattice, while the hexagonal graphite is made up of carbon sheets with very little bonding...(continued) Pressure twins are commonly found in graphite or molybdenite, where they are easily identified...grains. Left: Simple (upper right) and complex (lower left) twinning of gudmundite (blue and brown anisotropy) |  | | Book | | Garnets of East Africa 73 Rh.odolite of the Lindi District, Tanzania 76 Tsavorite Garnets 76 The Pyrope-...Tanzania 96 Red Dravite Tourmaline from the Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 ...Scapolite 127 Sinhalite 129 Spinel 129 Sunstone 130 Turquoise 130 Zircon 130 Appendixes Appendix A. Noteworthy...phlogopite mica found in a ruby from Mangari, Taita District, Kenya. 47 Figure 4.1. Typical Manyara (Maji Mota)...introduced: (1)the kimberlites of the Shinyanga diamond district, particularly the Williamson (Mwadui) Mine, which |  | | Book (edition) | | 01-50 V 76 78 80 82 Mineral Strunz-Group Graphite Sulfur Selenium Tellurium I/B.02-10 I/B.03-10...matrix (brownish grey), skutterudite (light grey, lower right corner); Core Drilling near Orahovac, Kosovo...(brownish pleochroism), silicates (dark grey); Basalt Quarry Bühl near Kassel, Germany [j]; Nic. // C Iron (dark...(brown and multicolour internal reflections); Basalt Quarry Bühl near Kassel, Germany [j]; Nic. + 20 Iron...terrestrial Fe from mafic rocks (assimilation of graphite) cream-white 57.67 - 59.62 slight Bireflectance: |  | | Book | | Gold, copper, si lver, platinum, bis1nutb and graphite fall in this subdivision. Sulph ides and ai·senides:...azurite, gypswn, anhydrite, baryte, apatite, turquoise, borax, ulexite are species in this catego1y....pyrolusite (steel grey with bluish tint), p. 82 graphite (steel grey, black), p. 30 stibnite (lead grey)...Red-brown cinnabar (red), p. 96 12 . . .. . graphite (black), p. 30 pyrolusite (grey to black), p....sodalite (blue), p. 234 malachite (green), p. 158 turquoise (greenish blue), p. 136 cuprite (red to almost |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...see it as being very dark or black (for example, graphite). Alternatively, if very little of the color in...anything at all through an opaque mineral such as graphite. Density is the mass per unit volume of a mineral...both diamond and graphite are made of carbon (C), diamond feels heavier than graphite because its carbon...centimeter of diamond than in the same volume of graphite. So although both minerals are made of the same |  | | Journal (issue) | | from left: Fluorite, 6.7 cm, from the Weisseck, Austria. Collected by Reinhold Bacher; Reinhold Bacher...Fluorapatite, 3.3-cm crystal, from the Pulsifer quarry, Maine. Collected by Terry Szenics; Jeff Scovil...rosette, with prehnite, 14 cm, from the Centreville quarry, Fairfax, Virginia. Smithsonian Institution collection...C6649; Lee Boltin photo. Fairfax Quarry, Virginia, 1967 The Fairfax quarry in Virginia is a classic locality...northeastern corner of the Fairfax quarry in Centreville, Virginia. I visited the quarry the next weekend. Nothing |  | | Journal (issue) | | and a History of Emerald Mining in Habachtal, Austria Duncan Pay FEATURE ARTICLES p. 300 292 Blue...of Emerald Mining in the Habachtal Deposit of Austria, Part I p. 347 Karl Schmetzer Contributes to...from Greenland • Yogo sapphire update • Banded turquoise from Zhushan County, China • Blue zircon deposit...and a History of Emerald Mining in Habachtal, Austria Welcome to the Winter 2021 issue of Gems & Gemology...Subcontinent, and China. From 200 BCE to 800 CE, the land was controlled by a group of city-states, often |  | | Journal (issue) | | Pakistan History of European Royal Jewel Sales Turquoise from China with “Raindrop” Pattern Fall 2020...Antoinette. 380 Unique Raindrop Pattern of Turquoise from Hubei, China Ling Liu, Mingxing Yang, Yan...spectroscopic and chemical analysis of a new variety of turquoise with a rare raindrop pattern with saturated colors...University of Geosciences in Wuhan characterize turquoise from China’s Hubei Province with a rare surface...represent the entirety of the marketplace, such as some lower-quality diamonds that are not GEMS & GEMOLOGY |  | | Book | | Pharaohs employed thousands of slaves to work the turquoise mines located within the Sinai Peninsula. These...crystal mines. In addition to their quest for turquoise, the Egyptians had an al¬ most fanatical desire...synthetic diamond was first produced in 1955 when a graphite crystal was subjected to such extremes of temperature...carat (weight). among crystals as it is stone. Lower quality crystals are powdered and used as a high-quality...often a speed that they are unable to cool into graphite, but form diamonds instead. associated authority |  | | Book | | CONTINENTS AND PLATES The division of the world into land and sea seems so natural and so timeless that it...(million years ago) at the end of the Permian, all land was joined in one supercontinent geologists named...Earth's crust is made from igneous rock, but on land, 75 per cent of it is hidden beneath a veneer of...be washed down through the rock to be deposited lower down as different minerals which become often valuable...(shown), plagioclases such as albite and anorthite, turquoise, kaolinite, serpentine, amblygonite . Prism and |  | | Conference Proceedings | | Italy (1960), Helsinki, Finland (1962), Vienna, Austria (1964); Barcelona, Spain (1966); Stockholm, Sweden...over 40 countries or areas – including Australia, Austria, Bahrein, Belgium, Brazil, Canada, China, Czech...300 lower Foyer 10h Opening ceremony 10h40 -11:20 Coffee breaks and posters Sessions in the lower Foyer...from a new occurrence from Paramathi in Karur district of Tamil Nadu, India. 12:00 – 12:20 Wilawan...Sandeep Vijay: A review of commercially available turquoise imitations Claude Drouin, Emmanuel Fritsch: A |  | | Journal (issue) | | the saucers, and boules and half'-boules on the lower shelf. c ~ .....,J ~ VI ~:s >< ;0 ~ ~...to distinguish round brilliant cut diamonds from lower refractive J.Gemm., 1979, XVI, 8 526 > ^ AC...the pavilion in a vertical direction while the lower refractive index stones look glassy because light...that the reflected image of H is seen through the lower girdle facet E or the pavilion main facet F in Figure...switch is pushed to its 531 J.Gemm.,1979,XVI,8 LOWER GIRDLE FACET PAVILION MAIN FACET (a) PAVILION |  | | Journal (article/letter/editorial) | | extinction is inclined at =45", X' turquoise blue, Z' deep turquoise blue, Microprobe analysisgaveCuO 41...The name is for the Arhbar mine in the Bou-Azzer district. A.P. Microprobe analyses from Vuonnemiok, Khibina...neighborite, and other minerals. (1897-1974), graphite and analogy to other vanadium phases. RusThe nameis...euhedral, hexagonalgrains up to LasambaHill, Kwale district, southof Voi, Kenya, and is found 50 rr.m.It is...crystals. Loudounite occurs at the Goose Creek Quarry, Loudoun County, Virginia. The name is for the |  | | Book (edition) | | long branches from Case lb. the Lake Superior district, of which the largest (presented by Professor...oz. of finely divided gold, will be seen in the lower part of case 2. The rare association of visible...most interesting gold nuggets are shown in the lower part of the case. Iron, Lead and Tin are of very...groups of crystals will be found in the upper and lower parts of the case and in the Pavilion. Sulphur generally...of gunpowder and of oil of vitriol. Diamond and Graphite, though chemically only different states of the |  | | Book | | derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric finds have...below. South Africa. Below right Coarsely foliated graphite. Rap;edara, Cevlon. PLATE 1 C '9 1 Orthorhombic...of these fourfold axes in all. The considerably lower symmetry of a monoclinic crystal is shown in Fig...crystallographic symmetry of a body may often be lower than its apparent geometric symmetry. In a pyrite...symmetr:y ar:e no longer: present (Fig. 16a, p. 93). A lower: cr:ystallogr:aphic symmetr:y is often only shown |  | | Book (volume) | | .......................175 Illinois – Hamilton Quarry Location Map ..........................................................258 Missouri – New Lead District Map .........................................................325 New Jersey – Franklin Mining District Map ............................................Texas – Fluorite in the Terlingua Quicksilver District .................................455 Texas – Sulfur..............502 Vermont – Orange County Copper District Site Map ...................................503 |  | | Book | | the only tool needed. These are pencils with the graphite points replaced by sharp-edged pieces of the standard...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...chrysoprase; copper gives a blue or green as in turquoise and malachite. Colour may be altered by heating...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either...mineral deposits are owned by someone - there is no land without an owner - and farmland can often be seriously |  | | Journal (issue) | | No. 3 / 2022 Emerald from Chitral, Pakistan Turquoise from Xinjiang, China Emerald Jewels from St Peter’s...was donated to St Peter’s Archabbey in Salzburg, Austria, in 1786. Although oral tradition has assumed the...Botcharnikov 254 Gemmological Characteristics of Turquoise from Hami, Xinjiang, China By Yanhan Wu, Quanli...and Ring from St Peter’s Archabbey, Salzburg, Austria By Karl Schmetzer and H. Albert Gilg 222 255...Tourmaline King Mine, Pala, California, USA The Pala District in San Diego County, California, USA, is famous |  | | Book (volume) | | Minerals are capitalized while rocks have been left lower case. This is the 5th printing and each time updates...series includes granites, schists (mica, garnet, graphite, quartz), and gneisses, as well as numerous granite...⎯siliceous gemstones; d N 5 mi. on Rte. 5: (a) chert quarry⎯Barite crystals, chalcedony, chert, siliceous oolites;...N of Quenelda graphite mines.) d NW 2½ mi., the Southern Graphite Co. quarry⎯Graphite. (The known deposits...deposits of graphite are mostly confined to a zone with a NE-SW trend running from the NE corner of Clay |  | | Book (volume) | | Minerals are capitalized while rocks have been left lower case. This is the 5th printing and each time updates...series includes granites, schists (mica, garnet, graphite, quartz), and gneisses, as well as numerous granite...⎯siliceous gemstones; d N 5 mi. on Rte. 5: (a) chert quarry⎯Barite crystals, chalcedony, chert, siliceous oolites;...N of Quenelda graphite mines.) d NW 2½ mi., the Southern Graphite Co. quarry⎯Graphite. (The known deposits...deposits of graphite are mostly confined to a zone with a NE-SW trend running from the NE corner of Clay |  | | Book (edition) | | branches from mossy growths the Lake Superior district, of which the largest (presented by thin plate...from Barr Head, Renfrew ; is to be seen in the lower part of the case. found native in a large variety...oz. of finely divided gold, will be seen in the lower part of case 2. The by rare association of visible...most interesting gold nuggets are shown in the lower part of the case. Iron, Lead and Tin are of very...a very fine mass from in gold, is shown in the lower part of the case : rich Bolivia, are shown from |  | | Journal (issue) | | the Libert y Hill Pegmatite Dick Dayvault 214 Turquoise from Virginia's Kelly Bank Mine Richard S. Mitchell...spectrophotometry (1975) 1974 9 c red surchage on 8 c opal AUSTRIA April 30, 1976 3 s Ammonite SEPTEMBER/OCTOBER...September 2 7, 1974 4 fr marble bl ocks 25 fr marble quarry May 7, 1976 25 fr aragonite 50 fr petrified wood...permission for collecting. Since a large tract of land belonging to a West Virginia paper company has ...when they cut and reseeded hundreds of acres of land. Before vegetation covered over the bare hills a |
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