 | | 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 | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede • Laurence N. Warr The Geology of Germany A Process-Oriented Approach 123 Martin Meschede...and Geology University of Greifswald Greifswald, Germany Laurence N. Warr Institute of Geography and Geology...Geology University of Greifswald Greifswald, Germany ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional |  | | 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...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 |  | | 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...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...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 |  | | 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 |  | | Book | | latter is better known in two forms as diamond and graphite. The basic element of the commonest mineral —...occur are called modifications, e.g. diamond — graphite, calcite — aragonite, pyrite — marcasite, quartz...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 |  | | 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...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 |  | | 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 |  | | Journal (article/letter/editorial) | | plutonic rocks of the gabbro family (anorthosites, gabbro proper, olivine gabbro and norites) which penetrate...Thus while the intrusions of these rocks of the gabbro family had perhaps their greatest develop ment...of primary lim estone, f Report on the F irst District, 1843, p. 486. t Buffalo Courier, August 25,1876;...the Third District, p. 255. 1 Report on Second District, p. 416. § Report on F irst District, p. 486....chiefly an upland valley, cut off from lake Champlain by a high ridge of gneiss and gabbro running north-and-south |  | | 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 | | | Book | | latter is better known in two forms as diamond and graphite. The basic element of the commonest mineral quartz...occur are called modifications, e.g. diamond — graphite, calcite — aragonite, pyrite — marcasite, quartz...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 | | 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 |  | | Book (edition) | | 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...being here directly over those suppressed in the lower pyramid. APATITE. If the student will shade over |  | | Report (volume) | | metapyroxenite, and metaperidotite.__--__ . 29 Gabbro....__..__.---...._________.-_____- --__ 32 G...anticline__---___-_-__--_---_______-___-_-_._.. Chester Valley syncline________________________________ Martic...____________________________________________________ Graphite..___________________-__________--.__ Soils_________________...injection of gabbro by graniticmaterial_________________________ 3. A, B, Injection of laminated gabbro by granodiorite..._-_______ 34 34 4. A, Injection of laminated gabbro by granodiorite and pegmatite, forming an injection |  | | Journal (article/letter/editorial) | | Institut, Goldschmidtstr. 1, D-37077 Gottingen, Germany ¨ Received 25 December 1997; accepted 21 December...more. With the exception of the spring waters on gabbro ŽpH up to 7.7. all waters on the highly siliceous...distinct increase in high ANC Žaq. spring waters on gabbro. Pb, As, Sb and Tl are characterized by being found...system in the Northern Harz Mountains of Central Germany has been chosen because of the wide range of chemical...chemical composition of granite, gneiss, gabbro and quartzite. level ŽASL.. was built between 1939 and |  | | | | element. Gold, copper, silver, platinum, bismuth and graphite fall in this subdivision. Sulphides and arsenides:...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...rhyolite (p. 256) Medium diorite (p. 250) Dark gabbro (p. 252) andesite (p. 260) basalt (p. 262) obsidian |  | | Book | | Gold, copper, si lver, platinum, bis1nutb and graphite fall in this subdivision. Sulph ides and ai·senides:...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....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 |  | | Journal (article/letter/editorial) | | nephrites. Europe Swiss Alps French Alps East Germany West Germany Poland Finland Asia America California Wyoming...Ospinsk-Kitoy ultrabasic massif with deposits of nephrite, graphite, asbestos and ehromites is inadequately known...advance a hypothesis explaining the origin of free graphite and establishing the position of graphitization...deposits are concentrated mainly in the Swiss Alps, Germany, Silesia and northern Italy. The Swiss Alps. Two...of Salux, at the contact between saussuritized gabbro and serpentinites; it is partly schistose and |  | | Book | | Council Glossary of the minerals of the Lake District and adjoining areas B. Young NEWCASTLE UPON...booksellers A Glossary of the Minerals of the Lake District and Adjoining Areas B. Young Introduction The...covered by this glossary includes the central Lake District , the adjoining west Cumbrian coal and iron ore...Ennerdale, Shap and Skiddaw form part. Sediments of Lower Carboniferous age, locally with some contemporaneous...wide area on the Wand N flanks of the Lake District. These Lower Palaeozoic rocks are succeeded unconformably |  | | Report (volume) | | MINERAL RESOURCES OF THE QUAKERTOWN-DOYLESTOWN DISTRICT PENNSYLVANIA AND NEW JERSEY BY F. BASCOM, E....monzonite. _________________ ^_ _________________ Gabbro. _--__-___-_-__--_--__-____--------_-_---_-_-_...section of the rocks of the Quakertown-Doylestown district._ ___-___-_____-_-----_______-_---__-___________...Well-bedded shales of the Lockatong formation in quarry on Delaware River 1 mile west of Lumberville, Doylestown...MINERAL RESOURCES OF THE QUAKERTOWN-DOYLESTOWN DISTRICT, PENNSYLVANIA AND NEW JERSEY 1 By F. BASCOM, E |  | | Catalog/List | | .... ..... .. . .. . . .. .. . . . . ...Lehigh Valley, Pennsylvania " . . . . . . . . . . . . . . .... . . . . Bcrgeu . Hil l, J e rsey City, "K. J. Gabbro-Diorite . . . . . . . . . . . . . . . . . . . ... . . . Salem, i\l assach u s e t t s Orbicular Gabbro-Diorite •. . . . . . . . . . . . . D a v i e Coun... . . . . . . . . Quin cy, Florid;:. GABBRO : Bytownite Gabbro . . . . . . . . . . . . . . . . . . ....Diallage-Hypcrsthcnc Gabbro . . . . . . . . . Near I g nacio Rcscn·oir. Colorado Homblende-Gabbro . . . . . . |  | | Book (edition) | | Asbestos Glass Sand 298 XI. Minor Minerals. Graphite Monazite 344 XII. Minor Precious Stones Minerals...occurring in passage of vegetable tissue to graphite Section in Coal Measures of western Pennsylvania...Spring Valley, 111 Northern Interior coal field Composite section showing structure of Lower Coal Measures...structure of western field of Los 104 Angeles district 106 Section of Spindle Top oil field near Beaumont...Galveston, Tex 32. Hypothetical section in same district as Fig. 31 33. Map showing lines of sections in |  | | Book (volume) | | reserved. H., Hofbuchdruckerei, Cothen-Anhalt (Germany). PRECIOUS The Precious Stones. Precious others...(including emerald) quartz, next of time same graphite, beryllium. stone together as form been ...like will the is light quartz from the lower jour setting, a are at on quartz all much... or viewed from a) below, b) of portion lower is colour made or be in the in cut of at...cutting may simply cut so stones form while the lower frequently most diamonds of cutting frequently |  | | Book | | 37 gold 5, 5 goslarite 59 grandidierite 85 graphite 5 greenockite I1 greenovite 81 grossularite 78...found in igneous rocks rich in magnesium and gabbro granules and and poor in silica, such as peridotite...brownish black, at Freiberg and Andreasberg in Germany, and also in the United States (Arizona). Antimony...in the Urals, discovered New in Zealand, Graphite, C: hexagonal system; sg 2.09-2.21; hardness ...system; sg 3.50; hardness 10. Though diamond and graphite have the same chemical composition — pure carbon | | | | | 37, 37 gold 5,5 goslarite 59 grandidierite 85 graphite 5 greenockite 11 greenovite 81 grossularite 78...rocks rich in magnesium and poor in silica, such as gabbro and peridotite. It is normally found in granules...brownish black, at Freiberg and Andreasberg in Germany, and also in the United States (Arizona). Antimony... and at Sudbury, Ontario. New in Zealand, Graphite, C: hexagonal system; sg 2.09—2.21; hardness 1-2...system; sg 3.50; hardness 10. Though diamond and graphite have the same chemical composition — pure carbon |
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