 | | Book | | MINERALS& GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published...East African resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties...is not commonly known that neighbouring Uganda, Rwanda and Burundi are also sources of some interesting...the gem-quality tourmaline that can be found in Rwanda). Literature on the subject is limited; the previous...of the five featured countries - Burundi, Kenya, Rwanda, Tanzania and Uganda - and introduces the reader |  | | Book | | triangular agate, polygonal umgrentzte Achate (Ger.), pegmatite agates, quasicrystals, angle-plated quartz, Zwickelfülling...Fleet, 1974; Nickel, 1973). The nickel deposits of Western Australia’s Yilgarn Craton have deep weathering...minerals in a duripanson the Owyhee Plateau of south-western Idaho. Within this soil horizon, SiO2 was released...closed-packed arrangement of SiO2 sol spheres or opal-A. Calcite in the form of scalenohedra occurred...the extinction pattern of the calcite. Clear-opal (opal-A), therefore, appears to represent a pseudomorphic |  | | Book | | phosphorus handbook. Wiley. New York Moore PB (1982) Pegmatite minerals ofP(V) and B(III). Mineral Assoc Can...Mode of Occurrence: Occurs in large masses in pegmatite at several mines in the Custer-Pringle area, Custer... South Dakota. Also found in pegmatite at Chanteloube, France; Buranga, Ruanda; Varutrask, Sweden; Sukula...Sukula and Lemnas, Finland; and in several other pegmatite deposits Amblygonite Optical Constants: IX...in Miocene clay at Bellaver de Cerdena, Gerona Province, Spain; in a bituminous clay rock at Messel, Hesse |  | | Book (edition) | | opalescence Somewhat pearly luster such as shown by some opal. opaque Property of being impervious to visible...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...Colorado at the Pelican Dives mine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia;...California; in sodalite-syenite in the Julianehaab district, Greenland; in the liparite lavas of the island | | | Book (edition) | | opalescence Somewhat pearly luster such as sho,vn by some opal. opaque Property of being impervious to visible...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...Colorado at the Pelican Dives m.ine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia;...Califo1nia; in sodalite-syenite in the Julianehaab district, Greenland; in the liparite lavas of the island |  | | Book (edition) | | deposit, it will normally contain amorphous silica/opal rather than quartz in its initial stages, as is...internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL...grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample as above:...grey); Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany (sample: Seifert);...Carletonville, Western Sector, Far West Rand (West Wits Line), Witwatersrand field, Gauteng Province, South Africa; |  | | Book (chapter) | | triangular agate, polygonal umgrentzte Achate (Ger.), pegmatite agates, quasicrystals, angle-plated quartz, Zwickelfülling...Fleet, 1974; Nickel, 1973). The nickel deposits of Western Australia’s Yilgarn Craton have deep weathering...minerals in a duripanson the Owyhee Plateau of south-western Idaho. Within this soil horizon, SiO2 was released...closed-packed arrangement of SiO2 sol spheres or opal-A. Calcite in the form of scalenohedra occurred...the extinction pattern of the calcite. Clear-opal (opal-A), therefore, appears to represent a pseudomorphic |  | | Book | | 42(H2O)0.18[Al2(Be2.35Li0.65)Si6O18] from Mokrusha pegmatite, Murzinka, Middle Urals (Yakubovich et al. 2009;...phosphates: nahpoite Na2(HPO4) from peralkaline pegmatite of the Lovozero massif (a), newberyite Mg(HPO4)·3H2O...of melanophlogite from Rio Fortullino, Lovorno province, Tuscany, Italy contains a strong band at 2330-2336...guano deposit on the Mt. Pabellón de Pica, Iquique Province, Tarapacá Region, Chile (Bojar et al. 2010). Now...of sturmanite from the Black Rock mine, Kuruman District, South Africa, determined from its crystal structure |  | | Book (edition) | | polished, 70 mm, Anjanabonoina, Madagaskar, G Page 5: Opal - fire, polished, 50 mm, Mezezo, Ethiopia, G Page...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga...Katanga administrative region again. The former Kivu province is now divided to three regions: INTRODUCTION |  | | Book | | Sciences Harald G. Dill The HagendorfPleystein Province: the Center of Pegmatites in an Ensialic Orogen...Pirajno, Geological Survey of Western Australia, and The University of Western Australia, Perth, Australia...com/series/7377 Harald G. Dill The Hagendorf-Pleystein Province: the Center of Pegmatites in an Ensialic Orogen...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area...area, however, the Hagendorf-Pleystein Pegmatite Province (HPPP) is not only the largest concentration of |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | extent of producing diffraction patterns (e.g., opal), (2) metamict materials that were crystalline at...few materials by X-ray diffraction order (e.g., opal). Lattice constants are generally derived es be...fibrous minerals Columbite, wolframite Quartz Opal, some yellow varieties of sphalerite Nepheline Tale...British Columbia NF Labrador (part of Newfoundland Province) MB Manitoba NB New Brunswick NF Newfoundland...Territory Queensland South Australia Tasmania Victoria Western Australia States, Mexico Aguascaientes Baja California |  | | Book (volume) | | yegorovite Na4[Si2O4(OH)2]2·7H2O from the Palitra pegmatite, Lovozero massif, Kola peninsula hydrated proton)...Ca2B4O4(OH)7Cl·7H2O Locality: Salar de Carcote deposit, El Loa province, Antofagasta, Chile. Description: Colourless crystal...borax deposit, Salar del Hombre Muerto, Salta province, Argentina (type locality). Description: Colourless...North pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra...Vakinankaratra Region, Antananarivo Province, Madagascar. Description: Grey grains from the association |  | | Journal (article/letter/editorial) | | unravelling the complex thermal history of the Grenville Province in southern Ontario. Although the original approach...known within the Jurassic Ferrar large igneous province, have been analysed for platinum-group elements...slab at depth. The position of this mineralized district ca. 200 km behind the existing Carpathian arc...and adakitic magmas for the entire Apuseni ore district. [1] Roşu et al. (2004) SMPM 84, 153-172. [2]...seen in >4 Ga detrital zircons from Jack Hills, Western Australia, have been interpreted as reflecting |  | | Book | | Lustrous black. Wilagedera prospect. North Western Province, Sri Lanka. H= 3-4, 0^= 3.94, Dg= 3.97, VIIIE...Lustrous black. Wilagedera prospect. North Western Province, Sri Lanka. H= 3-4, Djjj= 3.94, D(.= 4.22...Translucent buff, colorless. Petrogale cave, Madura, Western Australia, Australia. H=?, Djj3=?, Dq= 2.34, VHA... Metallic grey. Sedmochislenitsi mine, Vratsa district, Balkan Peninsula, Bulgaria. H= 2.5, Djj4= 6.32...Translucent dark blue-green, green. Sapucaia Pegmatite, Galileia, Minas Gerais, Brazil. H=6, Djjj=3.60 |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...a fracture, producing such forms as aegirine pegmatite. As well, hot hydrothermal fluids often carry...such as Porcupine and Hemlo districts; Noranda district, Quebec. USA: Mother Lode belt and others in...Localities Canada: Cobalt mining district and Thunder Bay District, Ontario. USA: several localities... Wire silver, Silver Islet Mine, Thunder Bay District, Ontario, Canada * 11.5 x 14x 11 om Silver has |  | | Book | | 500 and Locality Index, Author Index, 651 Rwanda-Burundi, 500 XI 627 PREFACE This book, family...more km) from Coptos passed center for these district, correspond cites a King to the are to Bostock...location of the mines Holland’s translation, of district, and it could have been Probably these mines...Colombian emeralds appears in this mineral were Western sys- Hemi- beryls in the interior natives or...others some Emerald also among it Adams of the western medieval and other authorities claim that clear |  | | Book | | various places, including the Teth~ Seaway. South-western North America was f i (led by the Sundance Sea...rich in fluonne. Crystals formed m voids m the pegmatite, called miarolitic cavities, can occasionally...of azurite to the shimmering rainbow colours of opal and these optical properties are often what gives...Milky, lustrous shimmer on the surface of potch opal. The way light passing through a transparent substance...adularescence. The play of colour on the surface of gem opal (left) is sometimes called opalescence. Strictly |  | | Book | | various places, including the Tethys Seaway. South-western North America was flooded by the Sundance Sea....from blocks that didn't drop. The Basin and Range Province of the south-west USA (right) formed in this way...Borneo and boundary (see Inside the Earth, this western USA, which erupted 175,000 covers nearly 5 million...of molten include southern Africa’s Karoo and Province erupted less than three magma which burns through...and Below: Salt Cellar Tor in England's Peak District is one of several tors in this region. They are |  | | Report (issue) | | (1983) (English). Microprobe analyses (13) from western Lepontine, Alps. AMPHIBOLE. Frechen (Neues Jahrb... 143-155 (1983). Mioroprobe analyses (4) from western Scotland. AMPHIBOLE. Moore, J. Petrol. 25, 126-150... 397-414) (1987) Microprobe analyses (7) from Western Alps, Italy AMPHIBOLE. Poporadze, (Nauchn. Tr....415-436) (1987) Microprobe analyses (4), Grenville Province, Canada. AMPHIBOLE. Thomson et al. (Can. Mineral...Mineral. Abstr. 35, 77 (1984). Occurrence in pegmatite, Bulgaria, Optics. ANDALUSITE. Pokrovskii and |  | | Journal (volume) | | for the sandy soils of Divjaka region (Central-western Albania). The experiment was realized in a greenhouse...the strength is. 15 X-ray difraction study of opal-CT in siliceous rocks Naumkina, N.I., Ilicheva,...sedimentary rocks are composed by silica (quartz and opal-CT), aluminium silicates (clay minerals, feldspars...carbonates. The originality and specificity of the opal-CT (the amount and structure) are determining the...concrete products, etc. We present the results of the opal-CT study with a phase-structural (mineralogical) |  | | Book | | Trudell, L.C. (1970): Lithologic Description of Western Oil Shale Corporation Project Utah EX—]. Laramie...(1989): Mineral. J. 14, 279. Flores mine, Huanuni District, Oruru, Bolivia. Agardite-(La) (La,Ca)Cu¢(AsO4)3(OH)6°3H20...at Ziryanovsk, Altai Mountains, Semipalatinsk Province, Kazakhstan. Rose, G. (1828) In Haidinger, W....engineer known for his work in the Limoges Altisite district. Chanteloube, Haute-Vienne, France. Na3k6Ti2[AlSigO26]Cl;...plus Gk. hydor, water, plus calcite. Khakassy District, Siberia, Russia. Bilibin, G. (1926): Soc. Russe |  | | Report (volume) | | Fleet Department of Earth Sciences University of Western Ontario London, Ontario N6A 5B7, Canada INTRODUCTION...XRD) 9: fermorite, Sitipar deposit, Chhinwara district, India (Smith & Prior 1911; Hughes & Drexler 1991)...sodalite foyaite and quartz-bearing peralkaline pegmatite reflect progressively increasing importance of...strontium-enriched apatites in lamproites from West Kimberley, Western Australia. Am Mineral 74:889-895 Efimov AS, Kravchenko...a garnetiferous pegmatoid, Northampton Block, Western Australia. N Jahrb Mineral Monatsh 317-327 Frondel |
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