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| Auburn University Auburn, Alabama 36849-5305 STIBNITE Downloaded by [Memorial University of Newfoundland]...the collector’s standpoint, good specimens of stibnite have been available in considerable quantity for...this issue’s Connoisseur’s Choice (see fig.). Stibnite is a lead-gray, metallic mineral that tarnishes...metallic mineral, having a specific gravity of 4.6. Stibnite is orthorhombic (2/m 2/m 2/m), forming in slender...and (120). Stibnite also occurs in columnar and coarse- to fine-granular masses. Stibnite is antimony |
 | Fortey, N. J., Ingham, J. D., Skilton, B. R. H., Young, B., Shepherd, T. J. (1984) Antimony mineralisation at Wet Swine Gill, Caldbeck Fells, Cumbria. Proceedings of the Yorkshire Geological Society, 45 (1). 59-65 doi:10.1144/pygs.45.1-2.59 | Journal (article/letter/editorial) |
| Young and T. J. Shepherd A previously unrecorded quartz-antimony vein is described from Wet Swine Gill...Deposition of quartz gangue preceded that of metalliferous minerals, which include an early stibnite-berthierite...Lake District, including those shown in Figure I. Stibnite was worked early last century at Robin Hood Mine...J. Stanley, pers. comm.). Erratic boulders of stibnite have been found on two occasions in boulder clay...[NY 389 270] (Ward 1876; Postlethwaite 1913). Stibnite and antimony sulphosalts have been described from |
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| Mineralogical Society. Ewa Koszowska (1957, Cracow, Poland) Graduated from the Jagiellonian University's Institute...Republic (Milan Novák) Hungary (Sándor Szakáll) Poland (Ewa Kos/.owska) Romania (Gheorghe Udubasa) Slovakia...Republic (Milan Novák). Hungary (Sándor Szakáll), Poland (Ewa Kos/.owska). Romania (Gheorghe Udubasa), Slovakia...the Carpathians Czech Republic (Moravia) Hungary Poland Romania Slovakia Ukraine 397 397 399 409 412 419...= crystal; xx = crystals; coll. = collection. Quartz, agate. (5.5 cm sp.), Erdőhorváti; PC [SG] SYMBOLS |
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| S3 . Mineral Group: Forms a series with stibnite. Occurrence: Typically in low- to high-temperature hydrothermal...chalcopyrite, tourmaline, wolframite, cassiterite, quartz. Distribution: Widespread. From the Llallagua, |
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| upper valleys are gorged with glaciers and the lower valleys are a succession of narrow canyons interrupted...some associated carbonaceous schist and abundant quartz veins. A belt of andesitic rocks crosses above...unconsolidated coal-bearing deposits, which supply many vein-quartz and chert pebbles, pieces of lignitic coal, and...limited, and lumber is packed 5 to 25 miles from the lower canyon in the winter. About a dozen men were working...that extends east and west between the ridges. The lower part is a deep canyon with vertical walls of andesite |
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| A, Gold quartz from National mine; B, Stibnite vein, Radiator Hill. 42 VII. A, Gold quartz from National.................. VIII. Photomicrographs of gold quartz from National mine............... FIGURE 1. Indexjnap...stope just above tunnel No. 5.... 6. Diagram of quartz seam in National vein in high-grade stopes between...Mr. Lindgren shows, the veins that carry much stibnite are not themselves rich in gold or silver. In...1908, but in that year a bonanza shoot of gold quartz was discovered which within four years yielded |
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| Pyrrhotite Rutile Scheelite Silver Sphalerite Stannite Stibnite Sylvanite Tennantite Tetrahedrite Uraninite Wolframite...machined so that it has flat and parallel upper and lower surfaces, or more sophisticated sample holders may...illumination as is comfortable should be used. 2. A lower-power objective lens should be used if possible...sphalerite, tennantite, manganite, boulangerite, stibnite (rarely seen), rutile, hematite (more distinct...following are used as quick and easy standards: Quartz and mounting medium R% Magnetite R% Galena R% Pyrite |
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| age______________________________ Granodiorite (quartz diorite) _ _ Basic dike rocks ___________________...deposits______________________ * Gold-quartz-tourmaline replacement deposits Gold quartz veins __ General charact...with barite _ _ _____ __________ Veins mainly with quartz gangue_______________ Gold and gold-silver veins...Metamorphosed sediments_________ _______ 66 " Quartz porphyry "_______________________ 68 Diorite__..._____ 102 Geology _____ ._________________ 102 Quartz veins_________________________________ History |
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| ...................................2 Chinese Stibnite: Xikuangshan, Lushi, Wuning and Other Localities...MineralogicalRecord.com Front Cover TOPAZ with Smoky Quartz and Albite, 15.3 cm, from the Wahtuwah mine, Gaoligangshan...and collectors in the future. WEW WEW Chinese Stibnite: Xikuangshan, Lushi, Wuning and Other Localities...Chinese mineral specimens are the extraordinary stibnite crystals and crystal clusters from the Xikuangshan...political opening of China began in the late 1980’s, stibnite has been among its most cherished collector minerals |
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| ........................................ 67 Stibnite.................................................plagioclase near andesine, orthoclase, microcline, quartz, hornblende, biotite, apatite, and magnetite. The...Survey. The microscope shows., however, that neither quartz nor orthoclase is present in identifiable crystals...general rims the basin and the other rocks occupy its lower part. Directly under the vitrophyric andesite there...of visit that the yellowish rhyolite might be a lower, slightly altered part of the series of flows now |
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| formation_____________________________________ Lower Cretaceous rocks__-----___--_------_----___-_-______...cinnabar replacing quartz sand grains. __ 48 10. A, Vug in sandstone lined with drusy quartz from Hudgins prospect;...from Parker Hill mine__-_ 48 11. Stibnite needles and cinnabar in quartz crystal._____________ 49 12. Views...region, largely after Miser and Purdue, and the occurrence of cinnabar at several localities. Branner,...synopsis of the general geologic setting and of the occurrence of the ore, and a paragraph on the significance |
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| intermediate layer of rock, and a thin cool crust. LOWER MANTLE ASTHENOSPHERE LITHOSPHERE CORE OUTER CORE...magnesium. It is composed of three zones: the immense lower mantle; the warmer, gooey asthenosphere in the middle;...instance—but geologists also have heavy, and ride lower in the mantle. The continental plates are thicker...its primary mineral constituents, feldspar and quartz, granite is a very hard rock that resists weathering—a... Minerals of various kinds, including calcite, quartz, and iron oxide, cement the layers. LARGE AND |
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| ............................................. STIBNITE OCCUR.RENCE IN BELGIAN CONGO. By Horatio C. Ray...joined the Association on April 5, 1928. • STIBNITE OCCURRENCE IN BELGIAN CONGO By HORATIO C. RAY San Juan...contained some beautiful aciatlar crystals of stibnite which would delight the heart of any collector...FOUND; IN TURKEY Chalcedony, the popular variety of quartz, received its name from Chal.cedon, an ancient...read their life history. One of these is a smooth quartz pebble which proves particularly interesting t~ |
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| incermediate layer of rock, and a thin cool crust LOWER MANTLE ASTHENOSPH ERE LITHOSPHERE I INNER OUTER...outer core, under less pressure, is heavy, and ride lower in the 1nantle. able to remain in the liquid state...immense been brought up to the surface by upwelling lower mantle; the warmer, gooey magma. Geologists study...its primary mineral constituents, feldspar and quartz, granite is a very hard rock that resists weathering-... Minerals of various kinds, including calcite, quartz, and iron oxide, cement the layers. LARGE AND SMALL |
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| Porcupine Creeks, which-are tributaries of the lower Slana River. Two small operations were in progress...recovered. A stibnite deposit on an upper tributary of the Tok River to which the name Stibnite Creek was...Meals made their discovery of placer gold on the lower Chisna River. Two years later the rich gravels of...prospective placer-mining ground, but only the lower part, near the border of the mountain and lowland...gravels, make up the unconsolidated deposits oi tne lower valley, The material of the unconsolidated deposits |
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| 20 4. Sketch map showing the relation of the stibnite deposit in Tok Valley to the creek bars and the...unmetamorphosed and range in age from Upper Triassic to Lower Cretaceous. All the sedimentary and volcanic beds...intrusive rocks range in age from Paleozoic or older to Lower Cretaceous or younger. The more recent geologic...extent. This glaciation left evidence of its occurrence in the forms of the mountains and in glacial...year, paying special attention to the possible occurrence of valuable minerals. The party was made up of |
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| _______ 54 Monzonitic rocks____________ ___ _ 54 Quartz dioritic rocks______ Contact metarnorphism and...schist- . _ General character_________ Quartzite and quartz-mica schist _________ Occurrrence __________ Petrography...Silicated limestone and eclogite______._____ 62 Occurrence and character_____________ 62 Petrography _______..._________ 64 Hornfels _________________________ 64 Occurrence ____________________-_ 64 Petrography _____________________...64 Granite gneiss_______________.________ 65 Occurrence ____________________ 65 Petrograplly __ - |
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| very complex, much as it is on a Dauphine-twinned quartz crystal. As stated before, dodecahedra of sodalite...Similarly, while the two halves of Japan twins of quartz may have undistorted, hexagonal cross sections...149 It should be noted that sphalerite has a lower (tetrahedral) symmetry than the hexoctahedral minerals...fin e s t kermesite, excellent valentinite and stibnite, and rare species such as chapm anite and garavellite...Unfortunately, the production of gold from thin quartz veins was small (maximum 2 kg/year) and the uneconomical |
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| addition, every mine, prospect, and reported occurrence known in Alaska is accounted for in the lists...that accompany figures 1-35. Not every listed occurrence, however, is described individually in the text...and those that are geologically atypical. Each occurrence cited in the text is accompanied by a number...given only once in each section-with the first occurrence. All succeeding locality numbers in the section...make his discovery known; or the report of the occurrence is entirely unsubstantiated. In addition, among |
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| byproduct, was permitted to continue work at a lower rate, and certain other mines, at which accessory...obvious reasons for this difference are the much lower value per unit of weight of the silver and the fact...intrusions of acidic rock, such as granite, or quartz diorite. As rocks of this type are fairly widely...With it at many places are subordinate amounts of stibnite, the sulfide of antimony, which is itself valuable...conditions. The principal antimony ore mineral is stibnite, an antimony sulfide with the chemical formula |
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| Litchfield County, where good crystals were taken from quartz veins in a variety of metamorphic, plutonic and...Litchfield, where a mass of white quartz on a ridge had once been mined for quartz, and large ilmenite masses...ilmenite crystals to 7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment,...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 |
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| shale of Triassic (?) and Jurassic age, Upper and Lower Cretaceous sandstones, shales, and limestones, and...are to some extent crinkled with minor folds. OCCURRENCE OF MICA. In the Black Hills as elsewhere muscovite...essential constituents of pegmatite being feldspar and quartz. The feldspars are commonly orthoclase or microcline...with but small amounts of quartz and accessory minerals; in others quartz is the principal mineral. The...mixture of feldspar and quartz than many of those in North Carolina. The occurrence of accessory minerals |
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| _______ Veins of quartz and clay minerals_____.__-___._.-__ Pyrite and cherty quartz veins._____________________...Chalcopyrite and quartz veins__.____-__.___--__-__. Gold-quartz and gold-calcite-quartz veins___________...veins___________ Stibnite-pyrite-quartz veins_______________________ Specularite and magnetite veinlets and disseminated...Thin section showing rings of sphalerite in cherty quartz from Barren mine, Jackson County; B, Polished surface...Bohemia district; B, thin section of adularia and quartz in vein matter from Leroy tunnels, Bohemia district |
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| vertically arranged, is the commoner, the right-hand (or lower) one a less frequent but important habit, or occasionally...Pyrrhotite, Niccolite : 8 Millerite, Bismuthinite, Stibnite, Covellite, Pyrite (cube), Pyrite (pyritohedron)...Torbernite, Carnotite, Scheelite, Wulfenite 18 Quartz (Amethyst), Quartz (Agate), Opal, Microcline, Labradorite...(Huebnerite), Wolframite (Ferberite), Powellite, Quartz, Tridymite, Cristobalite 256 a2 Opal (Hyalite)...where there is often a slight yellow touch. The lower part of the flame, just at the tip of the blue |
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| gypsum calcite fluorite apatite 2 CON feldspar . quartz topaz corundum diamond A fourth test is what...nonmetallic. Hardness: 6.5; can be scratched with quartz. GOETHITE Streak: Luster: white to very pale...resinous. Hardness: 6.5—7.5;.can be scratched with quartz. 18 COLOR white. uneven. x GOETHITE Luster:...resinous, glassy. Hardness: 7-—7.5; will scratch quartz. Streak: white. Cleavage: fair. Fracture: uneven...scratched by quartz. Cleavage: perfect parallel to length of crystals, brittle. Fracture: STIBNITE Color: |
