 | | Report (volume) | | and temperatures estimated for formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table...Carbonate-borates Beryllate borates Silicate-borates The Occurrence of FBBs in Borate Minerals Some General Observations...system AI2O3-B2O3-SÌO2-H2O "Boron-mullites" Dumortierite Alkali-free Al-tourmaline The system Mg0-Al...in the borders of granites and pegmatites 310 Occurrence and composition 310 Significance 313 Disseminated...Disseminated tourmaline in granites and pegmatites 314 Occurrence and composition 314 Significance 314 314 Tourmaline | | | Report (volume) | | and temperatures estimated for formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table...and pegmatites .................::eee eee 310 Occurrence. aiid. COMPOSITION. sks; iccanens teas soc ten...pegmatites.................:.seeceee noes 314 Occurrence and Conmmpositione. ie o.seten cant howe tides...c1c, (cnc 85 PS Ca OT eeeeeds aa esetacenae 314 Occurrence ahd: COMPOSIION: . sss .0csc00cescusaaceeGersbuassceems...ememeenae es 317 Breccias and veins within granite or pegmatite.................c.sceceeeeee eeeeee318 OCCUEPENCE |  | | Journal (article/letter/editorial) | | category of corundum-bearing anatectic felsic pegmatite formed in mantle peridotite earlier subjected...overprint by a mixed H2O + CO2 fluid. The bulk of the pegmatite bodies encountered are not obviously of anatectic...an LCT pegmatite also being affected by an LCT-type overprint, to form a “super-LCT pegmatite” is explored...economic potential of pegmatite occurrences. Keywords: granitic pegmatite, felsic pegmatite, classification...+ CO2. En revanche, la plupart des venues de pegmatite sont le produit du fractionnement d’un volume |  | | Journal (article/letter/editorial) | | Harris Park 6. Devils Head 7. South Platte pegmatite district 8. Mount Antero 9. Ruby Mountain 10. Calumet...Mile Park) pegmatite district 318 ROCKS & MINERALS 17. Micanite-Guffey pegmatite district 18. Devils...Devils Hole pegmatite 19. Grape Creek cordierite-gahnite locality 20. Kelsey Lake kimberlite 21. Chicken Park...Mountain kimberlite 23. Crystal Mountain pegmatite district 24. Genessee Park calc-silicate locality...Localities Pikes Peak Batholith A rich source of pegmatite minerals, the Pikes Peak batholith extends over |  | | Book (edition) | | are a great source of information. The mineral occurrence section has also benefited from the work and... and the need for some verification. Mineral occurrence descriptions include references to published...reputable sources and have been included where the occurrence is beyond doubt. The third edition included a...geographic district names have been replaced with a more descriptive term, metallic mineral district. This...reader to learn more about the geology of the district and to possibly predict the minerals that could |  | | Book (edition) | | andreprodu<..1ion by StudioVVG, Prague Printedin Czech Republicby Finidr.u.o .. Ce,ky Te~in 14/02/03/0...Publishing House in Prague and which recei\ ed the Czech Literary Award for best book in the natural sciencesfor...and other Larin Ianguages. and in the- Polish. Czech, Greek, Hungarian, Finnish. and Swahili Ianguages...administrative units are expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g. |  | | Book (edition) | | seldom present, with a consequent infrequency of occurrence) tend to form smaller crystals. Common minerals...about the nature of a rock specimen comes from the region where it was collected. In the field, knowing where...its associate, the very coarse variety known as pegmatite (see Pi. 6, entry 5). The rock collector's variety...of a specimen and the type of rock common in the region, it may be impossible to make a positive identification...range from a millimeter to a centimeter and more. Pegmatite is the name for a very coarse granite in which |  | | Report (issue) | | Olivenite, 1.6-cm cluster, Majuba Hill Mine, Antelope district, Pershing County. N. Prenn collection. Photograph... Davis The Goodsprings (Yellow Pine) Mining District, Clark County John C. Kepper 91 References ...Nightingale district Quartz epimorph after Calcite Agardite Grossular, Buena Vista district Quartz (amethyst)...Orpiment inclusions Calcite, Getchell Mine Robinson district inclusions inclusions Realgar and Fluorite Rhodochrosite...and Gold Silver and Quartz Silver, Reese River district Smithsonite Sonoraite Callaghanite Malachite |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Discm•t•ries, /960--20/ 5 ONTARIO Bentley Lake Road occurrence, Faraday Township, Hastings County. In fall 1994...site which they called the Bentley Lake Road occurrence, south of Bancroft. Sharp, flattened rhombohedral...specimens have come from an unusual calcite vein-dike occurrence with an exposure very near, indeed on the property |  | | Book (edition) | | minerals have been added and the localities of occurrence have been updated and expanded. The special uranium...seldom present, with a resultant paucity of occurrence) tend to be in smaller crystals. Common minerals...the nature of his rock specimen comes from the region where it was collected. The different sections...its associate, the very coarse variety known as pegmatite (see P1. 6, 2). The rock collector’s variety will...the mineral collector if he is unable to visit a region other than that in which he lives. (See rear endpaper |  | | Book (edition) | | Fluorite (octahedron), Sylvite, Atacamite 5 Pegmatite Quarry and a Traprock Quarry : 6 Iron, Arsenic...Schist 317 44 Sedimentary Rock Outcrops and a Pegmatite Quarry 45 Gummite, Uraninite, Autunite, Uranium...the nature of his rock specimen comes from the region where it was collected. The different sections...its associates, a very coarse variety known as pegmatite. The rock collector’s variety will be as limited...the mineral collector if he is unable to visit a region other than that in which he lives. Areas in which |  | | Journal (issue) | | as chrysoprase. Other items of interest were dumortierite in quartz, a beautiful green enstatite, and...Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence, and Aquamarine Deposits The First-Order Red...Brazil: The Tourmalines of the Governador Valadares District The Eyepiece Pointer Winter 1985 A Status Report...Gemstone Resources of China The Changma Diamond District, Mengyin, Shandong Province, China Gemstone Carving...1987 Gemstone Durability: Design to Display The Occurrence and Gemological Properties of Wessels Mine Sugilite |  | | Book (volume) | | discovery of an original(?) reference to a species' occurrence was a delightful triumph. Many original references...California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...preservation of authenticated specimens of each mineral occurrence. Most species are abundant enough that they will...rule is usually true only for special items from a region. The common minerals are not usually thus affected...specimens sell for a premium is that visitors to a region seldom arrive when the supply of minerals is being |  | | Report (issue) | | .......................13 Central Tower Hill occurrence..........................................................................14 Tower Hill Road occurrence...........................................................................14 Simpson Corner occurrence..............................................................................16 St. Andrews occurrence................................................................................18 Hatt Farm occurrence............................................. |  | | Book (volume) | | up 165 for to Temiskaming Cochrane district read district. Ref. 4, under oruetite, add See also... for VVakatipu district, CoUingwood, 294 Zealand read Wakatipu 303 line district, 8 in synonomy...pageite read paigeite. for Algoma district read Sudbury District. in the left Itand figure in the...by Schaller. The general statement of types of occurrence given for each of the common species is new to...reserving for himself the section deahng with the occurrence of minerals. In 1927 a definite contract was |  | | Book | | r.era had been found and to note its mode of occurrence and associated species. I! \Y:JS:J·1 long before...reflection ofnot only the varied geology of the region but also a once-thriving minerals industry and... 200 I) revealed more problems, including 26 occurrence; that were di!,credited or very doubtful. But...that he described the first and often the only occurrence of 65 "British" species. A further 11 British...work (as chief collaborator on Kingsbury's Lake District "discoveries") is most affected by the problem |  | | Book | | . . . . 23 Pegmatites of the Tohmajärvi-Kitee region . . . . . 209 The properties of gemstones . ... . . . . . . . . . . . . . . . . . . . . 43 Pegmatite deposit in Kaatiala . . . . . . . . . . . . ...prospecting of gemstones . . . . . . . . . 49 Pegmatite deposit in Haapaluoma . . . . . . . . . . . .... . . . . . . . . . . . . 304 the Viitaniemi pegmatite . . . . . . . . . . . . . . . . . . . . . 104...orbicular rocks. He is particularly familiar with the pegmatite mineralogy, even described two new mineral species |  | | Book | | Andalusite Kyanite Sillimanite Topaz Mullite Dumortierite Zircon Spbene Datolite Staurolite Sapphirine...summary of the essential optical constants and occurrence of "all" nonopaque mineral varieties. In view... Minerals WiLhout Complex Anions Very lin1ited occurrence, extre1ne hardness, crystal form, and extreme...modern and ancient (consolidated conglomerates). OCCURRENCE. s Sulfur 5 ORTHORHOMBIC Sulfur contains...elongated fragments. OPTICAL ORfENTATION. Lin1ited occurrence, extreme relief and birefringence, and low hardness |  | | Journal (volume) | | the gravity map of Karelia, Finland and Leningrad region. Central Geol. Prosp. Inst., Materials, Geophys...Auer, Väinö & Cappannini, Dino A. La erosion en la region de los lagos San Martin y Tar. Inst. Suelos y Agrotecnia...recent crustal movements in the German Democratic Republic, (wi tb disCllssion). Proc., 2nd Interna!. Symposium...BorreUo, Angel V. Depositos limnoglaciales en la region de Rio Turbio, Santa Cruz (Patagonia). Acta Geographica...L. A. Sternbergite from Ylöjärvi , Fin land: Occurrence and stabi li ty. Econ. Geol. , Vol. 65, p. 5456 |
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