 | | Book (chapter) | | On Gabbro (Euphotide of Hauy)* By M. Von BUCH. Extracted by M. de BONNARt>. (Annales des Mines for 1816...substances, a rock to which he assigns the name of Gabbro, given it by the Florentines. In the vii volume...a supplementary notice to his first memoir. The gabbro, spread over the four quarters of the world, forming...org/10.1017/CBO9781139225212.006 M. VON BUCH on Gabbro* 43 to be united with hornblende (amphibole)...are determined by Saussure. Although blocks of gabbro are spread over the Pays de Vaud and the environs |  | | Book (edition) | | reflected light (e.g. micas). or flexible (e.g. talc) minerals. In crystal optics for reflected light...ability of a mineral to scratch another one: 1 - talc, 2 - relative ability of an opaque mineral to reflect...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 |  | | Journal (article/letter/editorial) | | wollastonite, 649; lithian tourmaline, 747 Newhurst quarry, Shepshed, Leicestershire, vesigni6ite, 533 Cornwall...* Confluence of Carneal Water and Clenoe Water Germany (Deutschland) Bramburg, G6ttingen, tacharanite...Breitenbrunn ( ~ Breitenhof), Saxony, helvine, 627 Schwarzenberg, Saxony, belvine, 627 ~gi~ (~l~jquO...glauconite, 753 SCOTLAND France Auchinstarry quarry, Kil~yth, Stirlingshire, julgoldite, 761 Blackcraig... 59 Portsoy, Banffshire, migmatites, 66r Ratho quarry, Edinburgh, julgoldite, 761 Champagnac, Cantal |  | | Book | | look for. Michael O’Donoghue 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...cations. This group includes the micas, clays, and talc. Minerals of this group are easily split into thin...Feldspar 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc All that the scale tells us is that mineral no. |  | | Catalog/List | | ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...Chester Broad dark green prismatic xl mass with talc .. . 50 1. 50 1. 00 . 85 5.00 2.50 2x2" 2x3"...marble ..... . Connecticut Canaan, New England Lime quarry Silky white xl prisms in dolomitic marble .......magnesium manganese silicate New York Fowler, Amold Talc mine Lavender prismatic crystalline mass .........material ........... Arizona Cochise Co. , Swisshelm district Rich brown to gray massive, some with minor cerussite |  | | Journal (article/letter/editorial) | | authors are printed in SMALLCAPITALS,subjects in lower-case roman, and localities in italics. Actinolitc...ALABASTER (C. J.), An occurrence of brucite at Merehead quarry, Cranmore, Somerset, 4o0 ALEXANDER (P. O.) and...the Bondoc Peninsula meteorite, I21 (Syn.), MI Bad na h'Achlaise, Assynt, Sutherland, fenitc, microcline...(H.-M.), The nature of kerolite, its relation to talc and stevensite, 443 Broken Hill, New South Wales...W.), PItlLLIPS (E. R.), and STONE (I. J.), The lower quartzofeldspathic gneiss at Broken Hill, New South |  | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...examples for the hardness tests is as follows: 1. talc 6. orthoclase felspar 2. gypsum 7. quartz 3. calcite...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...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual |  | | 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 |  | | Journal (article/letter/editorial) | | authors are printed in SMALLCAPITALS,Subjects in lower-case roman, and Localities in italics. The minerals...i28. Amblygonite, France, Maine, New South Wales, Saxony, anal., cell-dimensions, distinction from montebrasite...albite, I56; - - , anal., d2o i, 489. Amoibite, Germany, anal., opt., X-ray, 26. Amos Stream, New Caledonia...and KADER (Z. ABDEL), Egyptian serpentinites and talc-carbonates, 394. BAYLlSS(P.), Cobaltite, gersdorffite...Australia, alkali feldspar, anal., d2oi, 489. Bosahan quarry, Falmouth, Cornwall, biotite, 2IO. BOWDEN (P.) |  | | Book (edition) | | 134 143 THE TRACHYTE AND ANDESITE FAMILY THE GABBRO FAMILY . 152 156 170 . THE GREENSTONE FAMILY...The plutonic rocks-granite, syenite, diorite and gabbro - occur frequently in bosses . Laccolite.- A dome-shaped...many igneous areas (e.g. , in the English Lake District and in North Wales) . Dykes and Veins. - A dyke...sometimes form marked features in the scenery of a district ; for, being more capable of resisting the disintegrating...beautiful scenery of North Wales and of the Lake District owes its origin to the great development of volcanic |  | | Journal (article/letter/editorial) | | Leibniz University, Welfengarten 1 D-30167 Hannover, Germany Abstract The Central European Variscides and their...with the leading raw materials sand plus gravel, quarry and dimension stones and limestones used for the...(Fig. 1). It has to be noted that among the term quarry and dimension stones there are also some hidden...rocks which formed the Precambrian through the Lower Carboniferous, when the Visean folding put an end...extension was at its maximum during the Devonian and Lower Carboniferous. Basic submarine volcanic activity | | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned jn such a way that they form...hardness tests is as 6. orthoclase felspar follows: 1. talc 2. gypsum 7. quartz 8. topaz 3. calcite 4. fluorite...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...sound when hit with a hammer. Soft minerals like talc or graphite split into powder under a hammer blow |  | | Book | | Binding: Lüderitz & Bauer, Berlin. Printed in Germany. Dedicated to my former teacher and friend Professor...Grigoriev (U.S.S.R) Prof. Dr. F.K. Drescher-Kaden (Germany) Mr. D. Minatidis (Canada) Dr. E. Mposkos (Athens)... Dr. Thesis, University of Frankfurt am Main, Germany. Fig. 551, by Wager and Deer from Theoretical Petrology...shows an anthophyllite, with alteration margins of talc, following a line of displacement, or which by the...Often secondary alteration of the anthophyllite tq talc has taken place, which sometimes can be so extensive |  | | Book | | names like granogabbro (granite-gabbro), monzogabbro (monzonite-gabbro), rhyodacite (rhyolite-dacite)...[Vulcan, Roman god of fire], plutonite (Pluto and the lower world), and Pele’s hair (Hawaiian fire goddess)...tribal peoples: bojite (Boii, Celtic tribe in Germany), gondite (Gonds, central India), onkilonite (Onkilones...sthene) are the essential constituents; differs from gabbro by the presence of the Definition proposed prthopyroxene...lUGS, plutonic rock satisfying the definition of gabbro, in which pl/(pl + px + ol) is 10-90 and the opx/(opx |  | | Report (issue) | | pattern of the silky chrysotile from the ''Globe" district of Arizona, ,The minerals of the serpentine group...languages of the Teutonic countries, Austria, Denmark, Germany, Norway, Sweden, and Switzerland, it is "serpentin";...designates a green rock usually coming from Italy or Germany, commonly with a mottled appearance and suitable...serpentine of Zoblitz (Zeblich) and Waldheim in Saxony (Agricola, 1546). Some of these rocks are actually...thus "The bold pine-crowned cliffs enclosing the valley are clothed with luxuriant vegetation broken here |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...fingernail is 2 and a steel nail is 5. For example, talc, which is 1 on the scale, is extremely soft and...Africa * 19 x 6 x 83cm Hardness 1 Hardness 4 Talc Fluorite Fluorite, Madoc, Ontario, Canada « 55...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...triclinic system are microcline, albite, kyanite and talc. Orthorhombic Monoclinic S Triclinic C C Cc |  | | Journal (article/letter/editorial) | | gabbros (norlte), ohvine-bearmg gabbros, and quartz-gabbro were also recogmzed. A quartz-diorite, dominated...quartz-plagioclase, was also observed, as a vein m a uralitxzed gabbro. Basalts and dolerites: They are generally prevalent...to the aforementioned alkah basalts, a nepheline gabbro (therahte) was found at one station on the Romanche...were recovered from the wall of the central rift valley m an unfractured portion of the ridge, at 6°N....grunerlte, epldote and zolslte, cataclastlc Ohvme gabbro (Uralmzed) enstatlte and calclc plagloclase with |  | | Book (edition) | | Allophane Zeolite Section Heulandite 8. 325 Talc, Pyrophyllite, Sepiolite Glauconite 329 Serpentine...scale to soapstone at the other. There is a still lower limit in liquids and gases; but of the hardness...the planes of the trisoctahedron in Fig. 21. The lower one of the three on the upper front solid angle...by a constant ratio, and the expression for the lower right one of the six planes will be 3c f & la. By...planes will remain essentially the same. In Fig. 10, bad the plane lettered | been made the plane 1, then |  | | Journal (article/letter/editorial) | | Actinolite the varieties from Corsica, those from the valley of Saass, at the foot of Monte Rosa, and those...the Kiennerud mine, contains laminae of Talc (prismatic Talc-mica); many varieties of the green contain...several of his works, and especially in two papers on Gabbro, inserted in the Memoirs of the Berlin Society...hardness =: 7.5, specific gravity =: 3.647; likewise Talc and Kyanite. These species, if intermixed with each...other, constitute that rock which has been called Gabbro by VON BUCH ; but the relative quantities of the |  | | Journal (article/letter/editorial) | | elevation of 986 metres. It is composed of saussurite-gabbro and greenstone (?) and forms a zone of country...(Thonglimmerschiefer), with crystalline limestone, talc-mica-schist, hornblende-schist, gneiss, etc. Rocks...zone of saussurite-gabbro is denominated by the author the Ulriken gneiss district. The dominant rock...hornblendeschist, together with small masses of gabbro and diorite. In this district also occurs a remarkable labrador-rock...great detail. For purposes of description the district is divided into five zones which succeed each |  | | Journal (article/letter/editorial) | | Ladysmith (Rosemeyer 1999, the Vulcan Materials quarry in Racine (Scovil 1994), the pegmatites of Florence...marcasite. A major mining district, the Upper Mississippi Valley zinc-lead district, was in these rocks in...and copper minerals were found. Mining in this district ceased in the late 1970s. A branch of the Middle...from 1969 to 1986. Coarse crystalline almandine, talc, magnetite, and various amphiboles came from this...may have omitted. Adams County Hamilton Mound. A quarry is located in the NE 1/4 sec. 36 T*20N*R.6E.: potassium |  | | 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 California’s 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 |  | | Journal (article/letter/editorial) | | authors are printed in SMALL CAPITALS,subjects in lower-case roman, and localities in italics" book reviews...microscopy, 453; -and ZUSSMAN (J.), The unit cell of talc, IO7 Alabandine, I.R. spectrum, 277 and MI7 ALABASTER(C... Deweylite, a mixture of hydrous serpentine and talc-like minerals, 75 Bismuthinite, I.R. spectrum, 277...of primary Cu-S mineralization in the Freetown gabbro, Sierra Leone, IiI Brattfors mine, Nordmarks Odalfalt...geochemistry of loveringite, 187 Cannington Park quarry, Somerset, djurleite, 172; durangite, 172; milarite |  | | Book | | (Abforming durch Ausfüllung); e.g., the famous talc pseudomorphs after quartz crystals from Göpfersgrun...malachite after azurite b. taking up a component; e.g., talc after quartz c. replacement (austausch) of a component;...composition into an opaque amorphous mass with much lower properties, such as refractive index and specific...significantly reduced 18O content (down to <10%), much lower than the 18O composition of the solution after reaction...the apatite, with the presence of NaF producing a lower nucleation density, larger crystals and coarser |  | | Journal (issue) | | ............................. Minerals of the District of Columbia ~1 Vicinity with Pertinent Bibliography...Quartzglass appara tus. Address GEORGE 0. WILD, ldar, Germany 4 for 1 F our fine 2x2 inch fluo rescent minerals...crystallized Rbodoebrosite from the rich gold n1ining district of Alma , Colorado, n1ns high. Unfortunately,...By WILBUR J. ELWELL, Danbury, Conn. After " 'e bad completed our minera logical trip through Northern...or Lime Rock, in Connecticut, where a limestone quarry operated by the New York Gypsum Co., furnished |
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