 | Fang, Xiang, Tang, Juxing, Beaudoin, Georges, Song, Yang, Chen, Yuchuan (2020) Geology, mineralogy and geochemistry of the Shangxu orogenic gold deposit, central Tibet, China: Implications for mineral exploration. Ore Geology Reviews, 120. 103440 doi:10.1016/j.oregeorev.2020.103440 | Journal (article/letter/editorial) | | which crops out in the northern part of the ore district and consist of quartz sandstone, slate and interbedded...interbedded limestone. It is overlain by the Lower Cretaceous Langshan Formation, cropping out in the southern...intercalated siltstone and silty mudstone. The Lower Cretaceous Qushenla Formation is a product of fluvial...facies, located about 30 km to the south of the ore district, consisting of sandstone, conglomerate, and interlayered...be branches of the Nima Fault, with associated lower order structures. The third-order faults strike |  | Kisin, A. Yu., Murzin, V. V., Tomilina, A. V., Pritchin, M. E. (2016) Ruby–sapphire–spinel mineralization in marble of the middle and southern Urals: Geology, mineralogy, and genesis. Geology of Ore Deposits, 58 (4) 344-359 doi:10.1134/s1075701516040036 | Journal (article/letter/editorial) | | comprehensive geological description of this rubybearing district, known as the Mogok Stone Belt, was published...the metamorphic grade reaches amphibolite or even lower granuilite facies, are sources of heat and stress...adjacent synclinal structures are mainly composed of Lower Silurian–Upper Devonian volcanic– sedimentary rocks...found in marble exposed in the Kuchino limestone quarry located in the zone of dynamic influence of the...been revealed in marble exposed in the Kuchino quarry. Three main types of marbles are distinguished |  | | Journal (article/letter/editorial) | | Cambrian, Silurian, Devonian, Carboniferous, Permian, Lower and Upper Triassic sedimentary units. Economically...(Halfon and Marc6, 1975 ). In the eastern Alps of Austria numerous deposits of crystalline magnesite are...and Lower Carboniferous of the Upper Austro-Alpine Unit (Veitsch) and, locally (Tux), in the Lower Austro-Alpine...in serpentinized ultramafics (Kraubath type in Austria; Redlich, 1909; also known from Yugoslavia, Greece...eastern continuation of the eastern Alps from Austria and Bavaria. From Czecho-Slovakia and southern |  | | Book | | form of car¬ bon, diamond is polymorphous with graphite. It crystallizes in the cubic system and occurs...pavilion 40° 45'; heat sensitivity: very low. Graphite C Graphite, sometimes called black lead, crystallizes...massive. There is a perfect basal cleavage. Both graphite and diamond are pure carbon; the phenomenon of...identical chemical composition is called polymorphism. Graphite has a typically greasy feel and will mark paper;...easily scratched. H 1—2; SG 2.1—2.3 Occurrence. Graphite occurs in flakes in metamorphic rocks that themselves |  | | Journal (article/letter/editorial) | | subsequently tectonically inserted into country rocks of lower metamorphic grade. This apparently occurred without...Group between or relatively close to bands of graphite-bearing marbles and biotite–garnet gneisses. The...3. are mainly sillimanite–graphite quartzofeldspathic and muscovite–graphite gneisses with minor intercalations...zone of a calcic plagioclase, corundum and local graphite. Fig. 7. Field relationship between the corundum-bearing...generally pink except for those in contact with graphite which systematically lose their hue. Similar occurrences |  | | Journal (article/letter/editorial) | | The Trimouns Quarry Luzenac, Ariège, France Freddy Marty Rue de l’Hôpital 11230-Chalabre France In recent...recent decades, the Trimouns quarry has become well known as a source of outstanding crystals of several...reference to the three peaks that overlook the quarry. Langue d’Oc is a regional language of Latin The...Littéraires et Industrielles de l’Ariège. In 1905 the quarry was acquired by the Société des Talcs de Luzenac...producer of talc at 1.3 million tonnes per year. The quarry employed some 100 workers at the beginning of the |  | | Journal (article/letter/editorial) | | BIU peak-pressure conditions never exceeded the graphite–diamond equilibrium curve, in agreement with the...units: graphite-rich schists and metaclastics of the epidote-blueschist facies ÔPinerolo UnitÕ; lower and...domains commonly found at the Costa Monforte marble quarry (Compagnoni et al., 2004), where it was extensively...and andradite (14– 23 mol.%) contents and for the lower grossular (16– 26 mol.%) content (Table 1 & Fig...coarser grained Fe-richer chlorite (Chl II, sheridanite: 0.83 < XMg < 0.85; Figs 5c & 6c). Chl II also |  | | Report (edition) | | “old” Lime Bluff quarry, Muncy; right fibrous : tremolite, C. K. Williams quarry, Easton: bottom: calcite...oriented coatings of goethite, “old” Lime Bluff quarry, Muncy, (courtesy of Delbert L. Oswald) ADDITIONAL...edition of Mineral Collecting Cedar Hill in quarry where Dave had done IV much of his work PREFACE...owners of the land, from the quarry or mine operators before entering to collect. (Land ownership listed...compilation. Finally, we acknowledge the many quarry and property owners who have aided the authors |  | | Journal (article/letter/editorial) | | hydrothermally altered metavolcanics is mostly sheridanite with up to ~ 25 wt.% FeOt and minor amounts of...are typically metamorphosed to greenschist and lower amphibolite facies in greenstone belts of various...modeling and an overall feasibility study). 3.2. District-scale geology The Ar Rjum goldfield is located...dykes. The meta-volcaniclastic rocks form small low-land areas of scattered outcrop in a peniplain. The rock...collected from four mineralized prospects within the district, and drill hole cores drilled by the Ma'aden Mining |  | | Journal (article/letter/editorial) | | attention. Kyanite–talc schist was found in the Lower Riphean Kyzyltash Formation of the eastern BMC near... (6) Zigal’ga, (7) Beletar, (8) Ayusapkan; (9) Lower Riphean Kyzyltash and Buganak formations; (10) faults:...rocks, unspecified; (R2) Middle Riphean; (R1–2) Lower Riphean rocks. Regional faults (numerals in circles):...(PZ) Paleozoic, (PR2) Upper Proterozoic, (PR1) Lower Proterozoic, (AR) Archean. The kyanite–talc schist...kyanite, talc, quartz, rutile, tourmaline, apatite, graphite, and occasional phlogopite. The microstructure |  | Gil, Grzegorz, Gunia, Piotr, Barnes, Jaime D., Szymański, Michał, Jokubauskas, Petras, Kalbarczyk-Gil, Anna, Bagiński, Bogusław (2019) Origin of Talc and Fe-Ti-V Mineralization in the Kletno Deposit (the Śnieżnik Massif, SW Poland) Minerals, 10 (1) 13 doi:10.3390/min10010013 | Journal (article/letter/editorial) | | schist and subordinate paragneiss, quartzite, graphite schist, calcic and dolomitic marbles, amphibolite...example of carbonate wall-rock, is from the abandoned quarry in this area. In addition, subordinate quartzite...fluorite, gold and silver (native elements), and graphite [3,4]. Figure 2. Schematic geological map of...and mica schist, in which quartzite (including graphite quartzite) intercalations are common. The serpentinite...hundred meters away, and marble from an abandoned quarry in the Kleśnica valley. Both newly collected samples |  | | Journal (article/letter/editorial) | | the serpentinitemassif of the Sobotka Mountains, lower Silesia, Poland, identified as amesite by powder...minerals. INrnooucrroN Amesite occurs with "sheridanite," a variety of chlorite, in vesicles in rock...soils derived from a serpentinite at Mount Sobotka, lower Silesia,Poland, as violet platy crystals forming...amesite were isolated from the accompanyrng sheridanite and were used for wet chemical analysis (Table...mounted on a CAD4 diffractometer equipped with graphite-monochromated MoKa radiation. Unit-cell parameterswere |  | | Journal (article/letter/editorial) | | Calcite + corundum + phlogopite + margarite + sheridanite -+ Al-rich pargasite + anorthite (An 96.7), 2)...calcite + spinel -+ corundum + phlogopite + sheridanite. Microprobe analyses are given for the essential...content was found to be extremely low; Ti is near the lower end of the range reported for natural phlogopites... fractive indices but are discriminated by the lower birefringence of chlorite. Chlorite in sample AA-9/2...high Mg and AI. Consequently, it plots in the sheridanite field delineated in the diagrams of Hey (1954) |  | | Journal (article/letter/editorial) | | 191–208 doi:10.1111/jmg.12174 lange, San Simeon, Graphite-schist blocks in the Franciscan Me California:...seacliff exposure at San Simeon, California, contains graphite-schist blocks in a shale-matrix, an undocumented...lithology within the Franciscan melange. Thirty graphite-schist blocks were studied to discover all the...composition, and textural characteristics the graphite-schists in San Simeon are subdivided into two...and IIA blocks are the most abundant. Type IA graphite-schists are siltstone/fine greywacke-like, preserve |  | | Journal (issue) | | ...................... 66 Peary Land Nyboe Land W ashington Land QAANAAQ (THULE) ^ DUNDAS DANMARKSHAVN...7 that in the same year he visited Salzburg, Austria, and Erlangen and W urzburg, Germany. In 1801 he...most of this period Giesecke lived in Vienna, Austria. From Erneuerte vaterlandische Blatter fu r den...number of study and collecting trips to Germany, Austria, Hungary, Italy and elsewhere. Giesecke finally...therefore decided to spend one more year in G reen land, collecting more specimens. A new trip to the south |  | Giuliani, Gaston, Fallick, Anthony E., Boyce, Adrian J., Pardieu, Vincent, Pham, Van Long (2017) Pink and Red Spinels In Marble: Trace Elements, Oxygen Isotopes, and Sources. The Canadian Mineralogist, 55 (4) 743-761 doi:10.3749/canmin.1700009 | Journal (article/letter/editorial) | | from Kievlenko 2003). (A) Location of the mining district in Tajikistan. (B) Geological structure of the...pargasite, chlorite (sheridanite-clinochlore; Garnier et al. 2008), 6 graphite, 6 pyrite, 6 pyrrhotite...forsterite, phlogopite, apatite, dravite, pyrite, and graphite (Khin Zaw et al. 2015); type M2, the non-gem-bearing...non-gem-bearing marble, comprises calcite, dolomite graphite, phlogopite, and forsterite. The metamorphic rocks...forsterite, gem clinohumite, chondrodite, rutile (Rt), graphite (Gr), pyrrhotite (Po), and pyrite (Grew et al |  | | Book | | Bildbreite 3 mm. H20 inclusions and halite cube (lower left side). Holzen, Sauerland, Germany. Width 3...diamonds" (ULRICH 1989). Europe ha s deposits in Austria, England ("Cornish diamonds", "Bristol diamonds")...several kilogram. The organic material resembles graphite. Occasionally the inclusions occur in zones and...quartz from the Ritterkopf, Rauris, Salzburg, Austria. Detaile view, width about 2 cm. 34 Bis 1 cm...Freiberg, Sachsen, besichtigt werden. Graphite Small graphite flakes are reported from rock crystal in |  | | Book | | Germany, France, Italy, Spain, Portugal, Belgium, Austria, the Soviet Union, Poland, Hungary, Czechoslovakia...Moon), and Michael Co/lins (who did not actually land). armstrongite, Neil Alden Armstrong, American astronaut...Russia. stephanite, Archduke Victor Stephan, of Austria. uvarovite, Count S. S. Uvarov, of Russia. WOMEN'S...since ancient times, as magnetite for Magnesia, a land bordering ancient Macedonia. A large number of these...Azores. gamagarite, Gamagara ridge, Postmasburg district, South Africa. garronite, Garron plateau area |  | | Report (issue) | | and W. A. Watters DSIR Geology and Geophysics, Lower Hutt Regretfully, an incorrect initial for Mr Railton...title page. His initials should be G.T., not G.L. Lower Hutt, New Zealand 1990 I I Beach sand, alluvium...may be unfamiliar with chemistry, an Survey) in Lower Hutt. They may also be consulted explanation of...various stages of the draft, and PO Box 30-368, Lower Hutt. J.G. Gregory for his advice and encouragement...Crystals in quartz vein cutting gneiss (visible on lower edge of specimen), Gertrude Saddle, Fiordland. (20 |  | | Journal (article/letter/editorial) | | Sb-Au veins in the Brandholz-Goldkronach Mining District prevalently are oriented N-S, NNE-SSW, NE-SW and...horizons is underscored by beds of phyllite and graphite schist alternating with the marble (Fig. 3a, b)...representative of the marginal facies have minerals lower in S contents (arsenopyrite: 46 wt. % As, 16.7 wt...by Sinatengrün, Göpfersgrün and Thiersheim are lower in As but abundant in S (Cu-Hg-Ag-Sb fahlore: 4...(1959), Al-enriched chlorite (leuchtenbergite - sheridanite) is replaced by Al-poor pennine. The latest stage |  | Ames, D. E., Galley, A. G., Kjarsgaard, I. M., Tardif, N., Taylor, B. E. (2016) Hanging-Wall Vectoring for Buried Volcanogenic Massive Sulfide Deposits, Paleoproterozoic Flin Flon Mining Camp, Manitoba, Canada. Economic Geology, 111 (4) 963-1000 doi:10.2113/econgeo.111.4.963 | Journal (article/letter/editorial) | | Abstract The Paleoproterozoic Flin Flon mining district is one of the world’s most prolific volcanogenic...0361-0128/16/4407/963-38 Paleoproterozoic Flin Flon mining district. Evidence for the location, duration, and temperature...Fulton, 2001) deposits in Tasmania’s Mount Read VMS district, and at the Ruttan VMS deposit (Ames, 1996; Ames...buried Chisel North VMS deposit in the Snow Lake district of Manitoba could be detected through biogeochemical...deeply buried mineralization. In the Hokuroko VMS district of Japan, Sato (1974) recognized the presence |  | | Book | | chemical compositions. The minerals diamond and graphite are Above: The basic coordination polyhedra:...diamond (left) and graphite. Both materials are pure carbon, but diamond is hard while graphite is soft and...of a single olivine containing both carbon. In graphite the carbon atoms are linked Mg and Fe. You can...were Na2CaMg(P04)2, have identical crystal struc¬ lower. Sure enough, if a high-temperature solid tures:...exactly like that of the sheetstructured mineral graphite, which we discussed in the section above on polymorphism |  | Wu, Yingke, Li, Kuo, Wang, Zhaoguo, Hu, Mianshu, Cao, Haiyue, Liu, Qinfu (2021) Fluctuations in Graphitization of Coal Seam-Derived Natural Graphite upon Approaching the Qitianling Granite Intrusion, Hunan, China. Minerals, 11 (10) 1147 doi:10.3390/min11101147 | Journal (article/letter/editorial) | | in Graphitization of Coal Seam-Derived Natural Graphite upon Approaching the Qitianling Granite Intrusion...in Graphitization of Coal Seam-Derived Natural Graphite upon Approaching the Qitianling Granite Intrusion...Minerals 2021, 11, 1147. Abstract: The Lutang graphite deposit in Chenzhou, Hunan province, China, is...is a well-known coal seam-derived graphite (graphite formed from coal during its natural evolution) deposit...reserves of around 20 million tons (2015 data). The graphite occurs at an andalusite bearing sericite quartz |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Menzenschwand Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from...Grossgreiner Mt., overlooking Zillertal Valley, Tirol, Austria, and at Passo di Vizze, Trentino-Alto Adige, Italy...Counties, California, etc. At Jordan6w Slcl5ki, Lower Silesia, Poland. The oldest known deposits of white...to Hot Springco., Arkansas, in the Point of Rock quarry, pearly. Clea,·age {001} perfect. {100} and {010} | | | Book | | chemical compositions. The minerals diamond and graphite are Above: The basic coordination polyhedra:...diamond (left) and graphite. Both materials are pure carbon, but diamond is hard while graphite is soft and...are composed entirely of the element carbon. In graphite the carbon atoms are linked into sheets which...state it is possible for the structure struc- lower. Sure enough, if a high-temperature solid solution...exactly like that of the sheetstructured mineral graphite, which we discussed in the section above on polymorphism |
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