 | | Book | | look for. Michael OâDonoghue Proustite (East Germany) 7 Rocks We can define a rock as a large mineral...Darker and even poorer in silica than diorite is gabbro, containing a calcium-rich plagioclase and pyroxene...Granite Nepheline syenite Syenite Dio rite Gabbro Peridotite 13 Dunite Serpentinite Rhyolite...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either |  | | Journal (article/letter/editorial) | | lessersulphidessuchas molybdenite,pentlandite, marcasite,cubanite,enargite,tetrahedrite,and covellite,...; Ely, Nev.; Mount Magnitaya,Russia;the Duluth gabbro,and singlespecimensfrom manydistricts. MAGNETITE...pentlandire, cubanire, corellite,millerite,molybdenite, marcasite,tetrahedrite, bismuthinite,bournonite, stannite...Ak-tyus, Russia (xoo) .................. Alamo District, Lower California ,.âą âą ,.âą 0 x x x x x x x........ x x x x x Several x Altenberg, Saxony, Germany (58) ....... Alexo Mine, Ont. (97) ....... |  | | Journal (article/letter/editorial) | | Authors are printed in SMALLCAPITALS,Subjects in lower-case roman, and Localities in italics. T h e m i...Aerugite, synthesis, 72; Cornwall, anal., X-ray, 72; Saxony, anal., X-ray, 72. Aeschynite-priorite series,...topotactic formation from y-CaSiOa, 347. Ankerite, Germany, topotactic decomposition of, 634. Anthoinite,...Arsenobismite, Brazil, 785. Artern, Sachseu-Anhalt, Germany, mellite, 542. ASWATHA~ARAYA~A(U.), Isotopic ages...(S.), see SARBADHIKARI (T. n.), 770. Bhilwara district, ]~ajasthan, India, scorodite, 776. BmaAR (G. |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit... = = = = = Acanthite, x 16 mm, Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite...at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical areas acanthite may occur...byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31 |  | | Journal (article/letter/editorial) | | Ladysmith (Rosemeyer 1999, the Vulcan Materials quarry in Racine (Scovil 1994), the pegmatites of Florence...pyrite, and marcasite. A major mining district, the Upper Mississippi Valley zinc-lead district, was in these...sphalerite, marcasite, calcite, barite, and copper minerals were found. Mining in this district ceased in...may have omitted. Adams County Hamilton Mound. A quarry is located in the NE 1/4 sec. 36 T*20N*R.6E.: potassium...converted to a hornfels at the contact with the Mellen gabbro complex: apatite, fayalite, ferroaugite, grunen'te |  | | Book | | phosphorite. Sulphur, salt-petre, pyrite and marcasite are also of biological origin. Metamorphic Mineral...diamond â graphite, calcite â aragonite, pyrite â marcasite, quartz â cristobalite â tridymite, rutile â brookite...results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...between that of the sample and that of the next lower grade. In this case we consider the hardness to...Different scratch hardness on kyanite 20 somewhere lower grade adding a half-grade to it. Although the determination |  | | | | Chalcocite, bornite, chalcopyrite, covellite, pyrite, marcasite, pyrrhotite, pentlandite, stibnite, cobaltite...(silver-grey), p. 54 cobaltite (silver-grey), p. 64 marcasite (pale brass yellow), p. 48 " bluish tint), p...rhyolite (p. 256) Medium diorite (p. 250) Dark gabbro (p. 252) andesite (p. 260) basalt (p. 262) obsidian... In the southern prairies and the St. Lawrence valley, this fragile layer of sediments produced fertile...Township, Cochrane District, Ontario; Darwin Mine, McMurray Township, Algoma District, Ontario; nuggets |  | | Journal (article/letter/editorial) | | hydrobasaluminite, basaluminite, 931 Merebead quarry, Somerset, mendipite, chloroxiphite, 9o i St. Austell...Cornwall, luxullianite, 441; 442 Scar Crag, Lake District, arsenopyrite, alloclase, glaucodot, cobaltian...Tynebottom mine, Garrigill, Cumbria, arsenical marcasite, gersdorffite, glaucodot, 390 Wheal Owles, St...associated rocks, 919 Le Pulec, Jersey, pyrite, marcasite, arsenopyrite, sphalerite, ferroan dolomite, galena...intergrown with clausthalite and wittichenite, 13I Germany (Deutschland) Clara mine, Black Forest, cuprotungstite | | | Book | | phosphorite. Sulphur, salt-petrc, pyrite and marcasite arc also of biological origin. Metamorphic Mineral...diamond â graphite, calcite â aragonite, pyrite â marcasite, quartz â cristobalite â tridymite, rutile â brookite...results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned jn such a way that they form...that of the next lower grade. In this case we consider the hardness to be of the lower grade adding a half-grade...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual |  | | Book | | and Technology Brennhausgasse 14 09596 Freiberg Germany Library of Congress Cataloging-in-Publication...for Geosciences and Natural Resources Hannover, Germany Preface The extraordinary growth of the computer................ 62 3 .2.8.1 Letneye, Dombarovsk District ....................................................... 62 3.2.8.2 Komsomolskoye, Mednogorsk District ...................................... 64 3.2.8.................... 65 3.2.8.6 Bakr-Tau, Baimak District, Bashkirian Republic ....................... 66 |  | | Catalog/List | | two earlier catalogues, but now offered at even lower prices. Additionally, I have included some specimens...golden-yellow nodule, A/20. ANALCIME. Enderby Quarry. Leicestershire. This specimen is more interesting...2.5x2x1.25", ÂŁ4.00 1. ANALCIME/NATROLITE. Dean Quarry, St. Keverne, Lizard, Cornwall. Pearly white to...to about 0.75" in size developed on surface of Gabbro matrix plus, minor crystalline Natrolite and Calcite...75x1", ÂŁ7.50. 2. ANALCIME/NATROLITE/CALCITE. Dean Quarry, St Keverne, Lizard, Cornwall. Pearly white, large |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...system include olivine, topaz, barite (baryte) and marcasite. Pushing on an edge of an orthorhombic cell so...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 |  | | Catalog/List | | ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...marble ..... . Connecticut Canaan, New England Lime quarry Silky white xl prisms in dolomitic marble .......material ........... Arizona Cochise Co. , Swisshelm district Rich brown to gray massive, some with minor cerussite...aluminum silicate Calilornia Placer County, Grass Valley Hornblende Norite Broad white crystal sections...chloro-phosphate :\'ew Hampshire Grafton Center, Ruggles quarry Olive green masses in pegmatite ....... Fl. APOPHYLLITE |  | | Book | | NaFe(SiOs)2. Monoclinic. Prismatic crystals. Cleaverageâdistrict (110.) Brittle. Luster-vitreus. Color-brown or...xtals are i to % inches long. In a dike cutting gabbro. The dike is 4 to 6 inches thick and is of a reddish...approximately 18 to 24 inches thick that cuts the gabbro which at this point is about 4% mile wide and...anorthosite. Sec. 5, T.3N., R.13W. Near the Hazel quarry in pegmatite dikes. Long rods of altered amphibole...locations in western Oklahoma. It usually occurs as the lower beds below the gypsum. (See gypsum locations.) |  | | Book | | Chalcocite, bomite, chalcopyiite, covellite, py1ite, marcasite, pytThotite, pentlandite, stibnite, cobaltite...(dark grey), p. 34 cobaltite(silver-grey), p. 64 marcasite (pale brass yellow), p. 48 bismuth (reddish silver-white)...Medium diorite (p. 250) andesite (p. 260} Dark gabbro (p. 252) basalt (p. 262) obsidian (p. 266) Sedimentary... In the southern prairies and the St. Lawrence valley, this fragile layer of sedin1ents ,,,. produced...McIntyre Mine, Timmins, Tisdale Tp., Cochrane District, Ontario. Width of specimen: 10 cm Pyrite (fool's |  | | Book | | minerals are the raw materials of the landscape. Every valley, hill and mountain peak is made entirely of rocks...just 20km/12 miles beneath Californiaâs Central Valley, it is substances like zinc and lead that join...so great that the iron simply cannot melt. The lower mantle is 6702,900km/420-1,800 miles down. Here...the underside of the crust, creating rocks like gabbro. Some oozes up into vertical cracks created by...drop away down these 'faults' to open up a rift valley, flanked by mountains formed from blocks that didn't |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...culture, derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric...minerals are concerned. Opal is still thought to bring bad luck, and similar stories are told about certain...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 |  | | Book (volume) | | reserved. H., Hofbuchdruckerei, Cothen-Anhalt (Germany). Translation This book has book of but ...gar 140 144, Iron-pyrites 148, 143 Group Marcasite Pyrrhotite 149. Lollingite 147. Mispickel...28a. and group Marcasite, Mispickel, Lollin- Iron-ores 29. 10. 12. Marcasite tite. Dyscrasite...Bieber, limestone may, and instead crystals quarry dissolved a such undergo disappears, call...Co. prism faces Germany. Cube crystal-form. Weardale, 5. of Harz, The Germany. (bright crystals |  | | Catalog/List | | APRIL 1974 1. NATIVE ARSENIC. Burraton Combe Quarry, St. Stephens-bySaltaoh, Cornwall. Specimen A -...red, hackly sheet. ltx;\-". 50p. CUPRITE. Marke Valley Mine, Linkinhorne, Cornwall. h bright shining maroon...EMPLECTITE. Tannenbaum, Nr. Schwarzenberg, Saxony, Germany. Rich, metallic, tarnished bladed maSS8S thickly...2xlixlt". ÂŁ5. 39. ERYTHRITE. Schneeberg, Saxony, Germany. Bright pink elongated flattened needly crystals...thickly intergro,m and lining cavities in massive Marcasite/ uartz matrix. Specimen A - 3tx2t". ÂŁ3; Specimen |  | | Book | | understanding and enthusiastic publisher I have ever bad the pleasure of working with. I know that be joins...Meldonaplitequarry,nrOkehampton, Devon ~.~eldon ap::'te quarry,nrOkehamp:on. 0: ,0,1: roci...Bergemann in 1858 from Johanngcorgenstadt, Saxony, Germany, and named by G. J. Adams in 1869. They were...work (as chief collaborator on Kingsbury's Lake District "discoveries") is most affected by the problem...Cumbria (Ixer & Stanley 1987); a glossary of Lake District minerals (Young 1987a), which referenced many |  | | Book | | by Gloucester Typesetting Co. Ltd. Printed in Germany Contents Translator's Foreword 4 Foreword ...known in some parts of the Continent, including Germany. Ore: Ores are deposits of minerals, which contain...hardness. Each mineral will scratch those in a lower division on the scale and can be scratched by those...chalcocite, chalcopyrite, lollingite, pyrrhotite, marcasite, molybdenite, pentlandite, pyrites, realgar, proustite...prisms and pyramids. Occurrence: England, Scotland, Germany, Alps, Urals, Brazil, Madagascar. Quartz is important |  | | Book (edition) | | Gersdorffite Ullmannite Hollingworthite Irarsite Marcasite Ferroselite Hastite Frohbergite Mattagamite Froodite...Affiliation/Address Luzerner Str. 10-12, D-12205 Berlin, Germany â Freie UniversitĂ€t Berlin, FB Geowissenschaften...Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Bundesanstalt fĂŒr Geowissenschaften und Dr. Frank...Stilleweg 2, D-30655 HanDr. Thomas OberthĂŒr nover, Germany Dr. Thomas Kenkmann Museum fĂŒr Naturkunde der ... zu Berlin, Invalidenstr. 43, D-10115 Berlin, Germany Prof. Dr. Robert Marschik & Ludwig-Maximilians |  | | Catalog/List | | bluish Cha lcanthiteo lxi". ÂŁ1- 3. ANALCIME. Dene Quarry, st. Keverne, Lizard, Cornwall. A group of large...larg';lst cr:rst,~~ be~ng 1" in size, intergrown on gabbro matrlX. 22x12' ~l. 4. ANAPaITE. Bellaver de Cerdena...specimen. ItxFxlt". ÂŁ4.50. 6. lIRSENOPThITE. Penlee Quarry, Newlyn, Corm~alL a lxlt" cavity in massive white....k..Zill{ ITE. 9. rt2rn[ITE. Moldawa, Banat District, Hungary. A 1 cm. sharp well formed bright blue...for displa;y. 4x2t". ÂŁ4.50. 13 urium, httica District, Greece. Bright, " small, sharp blue crystals |  | | Book (volume) | | ' This Kupferschiefer is cases. lean in this district, carrying only 1.4% of copper, and no silver,...fissures known as 'rucken' in the Mansfeld copper district also contain occasional nickelite, together with...examples of this type is the cobalt district of Schneeberg, in Saxony, a mountainous region 1,300 to 1...present. Besides quartz-cobalt veins the Schneeberg district contains quite a 3 variety of vein types, which...Schneeberg, cally important deposits of the entire district. the veins are so crowded together in an area |  | | Journal (article/letter/editorial) | | as the Picher district, which is in the Oklahoma portion of the TriState. This district has probably produced...and Schleicher 1961). Watonga, Universal Atlas quarry, 6 mi. NE of Watonga, Nescatunga Gypsum of the...1944). Canadian County Calumet, Scheiter gypsum quarry, 7.5 mi. N of Calumet, SE1/4 sec.2, T. 14N, R.9W...(Gilmore 1963). Fletcher, Texas Gypsum Company quarry, SW1/4 W 1 / 4 sec.11, T.4N, R.lOW, 60-foot gypsum...15W, Cambrian-age Quanah Granite pegmatite and gabbro: bornite, chalcopyrite, copper, cuprite, pyrrhotite |
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