 | | Book | | Vojany, Slovakia) Head of the Department of Natural History, Eastern Slovak Museum, Košice He finished...His Ph.D. study was at the Technical University, Košice (1992). Until 1990, he worked at the Dionýz Štúr...(1983). Ph.D. study at the Technical University, Košice (2000). Since 1980, he was employed in the Herman...Poland (Ewa Kos/.owska) Romania (Gheorghe Udubasa) Slovakia (Rudolf Duda) Ukraine (Orest Matkovs'ky) 31 31...(Ewa Kos/.owska). Romania (Gheorghe Udubasa), Slovakia (Rudolf Duda). Ukraine (Victor Kvasnytsya) 127 |  | | Book | | Ľubietová-Podlipa, DO strana 5: Tetraedrit, xx 10mm, Rožňava, DP strana 6: Bari!- wolnýn, xx 20mm, Rožiiava...Okruhlicovi (Banská Bystrica) a Jozefovi Molnárovi (Košice), Bohuslavovi Burešovi (Praha), Lubomírovi Mlčochovi...zbierok kfotodokumentácii: Dušanovi Petercovi (Košice), Albertovi Russovi, Martinovi Števkovi, Petrovi...Kotuľakovi, Jozefovi Salanarovi a Jozefovi Molnárovi (Košice), Norbertovi Hesounovi (Banská Štiavnica) a Michalovi...akciová spoločnost'. Jelšava; MONTANA Košice, spol. s r.o., Košice; Ludovika Energy, s.1:0., Spišská Nová |  | | Journal (article/letter/editorial) | | Siderite Siete Suyos Mine, Atocha-Quechisla District Sud Chichas Province, Potosí Department, Bolivia...siderite from Siete Suyos mine, Atocha-Quechisla district, Sud Chichas Province, Potosí Department, Bolivia...A complete series exists between siderite and magnesite and between siderite and rhodochrosite . There...found as iridescent microcrystals; the Duquesne district, Santa Cruz County, as curved rhombohedra; and...sphalerite and pyrite. The White Raven mine, Ward district, Boulder County, has produced some of the Figure |  | | Journal (article/letter/editorial) | | DC 20013 pohwatp@si.edu AR AGONI TE PART 1: ARAGONITE FROM WESTERN EUROPE T here are many collecting...of classic localities is aragonite, this column’s featured mineral. Aragonite is an orthorhombic mineral...mineral with point group 2/m 2/m 2/m. Aragonite occurring as untwinned crystals is rare; its normal occurrence...stalactitic. As mentioned, twinned crystals of aragonite are common. Repeated twinning on {110} yields...examples are the most familiar to collectors. Aragonite may display polysynthetic lamellae and striations |  | | Catalog/List | | squares arc new entry for this list ANALCIME Dean Quarry, Lizard ,Cornwall Achmclvich, near Lochinvcr, Scotbnd...Bay, Skye, Scotland AEGIRINE Mount Malosa, Zomba District, Malawi 17 2 Rich mass of black crystal sections...ALBERTITE near Dingwall Scotland ANATASE Cuiba district, Gouveia Minas Gerais. Brazil 28 Quite rich black...ANATASE Lauvland, Frigstad, Evjc Norway 933 Hingston Quarry,Cornwall 16 Rich grey-white cleavages , some with...ARSENIOPLEITE Sjogruvan,Riddarhyttan,Swedcn 7 Saga Quarry, Tvcdalcn near Larvik, Nomay 10 03 Red vcinlets |  | | Catalog/List | | Mine, Governador Valadares, Minas Gerais £48 ARAGONITE lustrous reddish-brown pseudohexagonal crystals...Safrou Morocco £25 9. MAGNESITE choice colourless rhomb about one inch on magnesite with smaller rhombs...botryoidal , small display piece 2x3 Boyleston Quarry, Glasgow Scotland 1 £10 20. ANA•LCIME around a...small 2x2 matrix, good location piece -- Boyleston Quarry south\ofGlasgow, Scotland £8, b) lxl with less...salmon-pink Barite in the matrix (not fluorescent) Crich Quarry Derbyshire £ I 0 28. HYDROXYL-HERDERITE good pale |  | | Book | | metallurgical industries (e.g· beryl as a source of BeO, magnesite of MgO, and bauxite or Al-laterite as a source...also employed, for example, for asbestos, talc, magnesite and similar raw materials· Some raw materials...a-quartz —► /?-quartz mica markasite — > pyrite aragonite —► calcite origin of Ga-silicates smoky quartz...metasomatism (origin of chrysotlle and of massive magnesite in basites, the latter also in limestones and...group involves barite, witherite, Iceland spar· magnesite, dolomite, talc and asbest,and in the low-temp |  | | | | orthorhombic felspars, mica, gypsum, augite, (aragonite, antimonite, marcasite, barytes, topaz) (4)... b) orthoclase (so-called Carlsbad Twin), c) aragonite. A single crystal is sometimes made up of two...growths, we distinguish contact twins (gypsum, aragonite), and interpenetrated twins (fluorite). Crystal...mineral of identical chemical composition. Thus, aragonite (orthorhombic 16 calcium carbonate CaCO;) changes... in Butte, Montana (USA), in the Lake Superior region, Michigan, and in Yugo- slavia; bedded deposits |  | | Report (issue) | | , M. D.) L. D. Clark (1) p. 17. Inyo County: district, 2, As radial clusters near Lippincott mine...3, Watters (p.c. '58). Mendocino County: 1, A quarry 5.1 miles north of Longvale on U.S. 101 has furnished...riebeckite crystals occur in glaucophane schist in a quarry 5.1 miles north of Longvale on Highway 101, associated...Old Mine ore body, Kinkel et al. (2) p. 89. ARAGONITE Inyo County: 4, White to colorless crystals...found, after an aerial survey of the Mojave Mining district where an anomaly appeared in section 10. shaft |  | | Report (issue) | | the 11-cm spray of aragonite (shown on the following page) from the open-pit magnesite mine at Podrečany...Podrečany, Czechoslovakia (now just Slovakia) which gave up many such pieces in the mid to late 1980s; and one...================= Aragonite, 11 cm, from Podrečany, Banská Bystrica, Slovakia. Arkenstone specimen;...Peruvian metal deposits, those of the Casapalca district have a significant zone of oxidation, with secondary...from other abandoned uranium diggings in the Razès region of Haute-Vienne, central France: these are marked |  | | Journal (issue) | | Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...belonged to mining companies based in the Brad region. Today, it is owned by S.C. “MINVEST” S.A. Deva...more than 2000 year old mining activity in the region. 2. Collections and exhibitions The expositional...(about 80% of the specimens originate in the Brad region, especially Musariu and Brădişor deposits). The...unit. For instance, in BradSăcărâmb metallogenic district, the Au:Ag ratio is relatively uniform (45% to |  | ALONSO-ZARZA, ANA M., MARTÍN-PÉREZ, ANDREA, MARTÍN-GARCÍA, REBECA, GIL-PEÑA, INMA, MELÉNDEZ, ALFONSO, MARTÍNEZ-FLORES, ESPERANZA, HELLSTROM, JOHN, MUÑOZ-BARCO, PEDRO (2011) Structural and host rock controls on the distribution, morphology and mineralogy of speleothems in the Castañar Cave (Spain) Geological Magazine, 148 (2) 211-225 doi:10.1017/s0016756810000506 | Journal (article/letter/editorial) | | water supply. Other branching, fibrous, mostly aragonite speleothems, commonly occur in the steeper cave...petrographical and isotope analyses indicate that both aragonite and calcite precipitated as primary minerals in...precipitated in waters of low magnesium content, whereas aragonite precipitated from magnesium-rich waters. Differences...calcite (−5.2 ‰ for δ18 O and −9.6 ‰ for δ13 C) and aragonite (δ18 O of −4.5 ‰ and δ13 C of −3.5 ‰) can be explained...explained by the fact that the more unstable mineral (aragonite) tends to incorporate the heavier C isotope to |  | | Journal (article/letter/editorial) | | southeast of the province of Eskişehir (Fig. 1). The region is a part of the lacustrine Eskişehir-Sivrihisar...end of the same period. The collision zone in the region of Eskişehir is clearly associated with HP – LT...(Monod et al. 1991). Rift development of the Aegean region and young volcanism strongly affected the Eskişehir...extension regime of Aegean region thins the crust and the lithosphere over a large region that caused to develop...had been resulted in an extension in the Aegean region. The Ilyaspaşa section exhibits the best exposure |  | | Report (edition) | | County, the Stillwell quarry in Lancaster County, and the Medusa Cement Company quarry in York County, are...Zircon Crystal 50 Diagramatic Sketch of Brinton Quarry Pegmatite 53 Geologic Cross-Section of West ...84 of Deweylite after Dolomite, Ceclar Hill Quarry 89 _ Limonite Pseudomorphs from Chestnut Hill...permission from the owners of the land, or from the quarry and mine operators, before entering to collect...have been taken from topographic quadrangles. A quarry or mine symbol designates the exact mineral location | | | Book | | .......................................... 52 Slovakia ( Rudo lf Ducfa) ...............................(Ewa Koszowska). Ro mania (Gheorghe Uduba~a), Slovakia (Rudolf Ducfa). Ukraine (Victor Kvasnytsya) Native...wa especially rich in specimens from the Banal region and Gutiii Mts. (fu loppite was named in his honor)...detailed. unified mineralogical encyclopaedia of the region had been planned by the Commi!.sion on Mineralogy...Verde§ (Gold Museum. Brad) - for photography. Slovakia: Eva Sitasova (Eastern Slovak Museum. Kosice) | | | | | of calcite with magnesite relics in the core as a reaction of UHP dolomite and magnesite with Ca-rich fluids...rocks. Thus, the crustal material of the Sanqingge quarry, originally sedimentary carbonates (now marbles)...channel. K EY WORDS : coesite, eclogite, marble, magnesite, Sulu UHP terrane. Introduction THE Sulu ultrahigh-pressure...Sulu orogenic belt. Following the discovery of magnesite in the same rocks (Zhu, 2004, 2005) in the mining...Liu et al. (2006) reported the assemblage aragonite + magnesite enclosed in zircon from dolomitic marbles |  | | Report (edition) | | Crystal . . . . . . .. Diagra1natic Sketch of Brinton Quarry Pegmatite Graphic Granite Geologic Cross-Section...Area Pseudomorphs of Deweylite after Aragonite. Cedar Hill Quarry . . . . . . . Calcite Crystal Forms...permission from the owners of the land, or from the quarry and mine operators, before entering to collect...have been taken from topographic quadrangles. A quarry or mine symbol designates the exact mineral location........,, ....... ...... " Open pit, mine, or quarry. Shaft-Tunnel entrance ----------~ ..... ' l' |  | | Journal (article/letter/editorial) | | massonne@mineralogie.uni-stuttgart.de The assemblage magnesite þ aragonite would be another unequivocal indicator for...al. (2003) reported both, aragonite (transformed to calcite) and magnesite, in dolomite-bearing metapelites...China. Zircon from the same rock contains aragonite and magnesite as inclusions (Liu et al., 2006). Consequently...demonstrate that CaCO3 (calcite or aragonite) has overgrown magnesite originally coexisting with dolomite...of 0.01. These P–T conditions are close to the aragonite-calcite boundary. Considering the Mg content of |  | | Report (issue) | | British Empire and Foreign Countries MAGNESIUM, MAGNESITE, AND. DOLOMITE By J. LUMSDEN, B.Sc.(Edin.) ...Magnesium • • • • World's Production of Magnesium MAGNESITE • • • • • • • • • • • • • • • • • • ...• • 36 • Winning and Treatment of Magnesite • • • • Magnesite ~ Industry: • • •• • • • • World's Production...Production and Prices of Magnesite DOLOMITE • • • • • • • • Dolomite in Industry • • . ~ . ••...MAGNESIUM SALTS Magnesium Salts in Industry MAGNESITE, DOLOMITE, ETC., IN THE BRITISH EMPIRE : . United |  | | Journal (article/letter/editorial) | | artinite, brugnatellite, coalingite), followed by aragonite, brucite, dolomite and calcite. Two main stages...minerals of fissures are calcite, dolomite and aragonite. Mineral assemblages have formed from low-temperature...Introduction In the last years the active serpentinite quarry near Hrubšice in Moravia provide an opportunity...occurrences in serpentinite bodies of Austria (magnesite deposit Kraubath, Styria; POSTL 1993) and Italy...hydromagnesite, pyroaurite and aragonite, localy with dypingite, magnesite and serpentine minerals as well |  | | Journal (article/letter/editorial) | | Netherlands Magnesite deposits and occurrences in the West Carpathians of Czecho-Slovakia J. Ilavsk~,a...Ilavsk~,, J., Turan, J. and Turanovd, L., 1991. Magnesite deposits and occurrences in the West Carpathians...of CzechoSlovakia. Ore Geol. Rev., 6: 537-561. Magnesite occurrences in the West Carpathians, a part of... Economically most important are crystalline magnesite (Veitsch-type) and locally associated talc in...2-3 million tonnes). Traditionally, the Slovak magnesite deposits had been interpreted as hydrothermal-metasomatic |  | | Journal (article/letter/editorial) | | series of fluorescent carbonates is the mineral MAGNESITE, named after its composition, magnesium carbonate...amateur because of its resemblance to CALCITE. MAGNESITE is a product of hydrothermal solutions acting...bearing rocks, resulting in the formation of MAGNESITE. The color, hardness, gravity, cleavage, etc....identifying MAGNESITE. Under the ultra violet lamp it is not possible to identify MAGNESITE from CALCITE...slightly weaker. MAGNESITE is also triboluminescent. In the United States MAGNESITE is found in serpentinous |  | | Catalog/List | | -- ·- · ~~1 ~0/~ 2 AEGIRINE Mount Malosa, Zomba District, Malawi 1073 AMBL YGONITE Eitarama,Ruanda, Central...------------6 ALBITE Kragero Norway 933 ANATASE Hingston Quarry,Comwall Black micro crystals in crystalline feldspar...rich variety) ½ x ½ £5 Ni AsO H/20 7 ANNITE Saga Quarry, Tvedalen near Larvik, Norway Pure black mica plate...£3 lx2 £6 2x2 £12 --·- ---749 APATITE Hingston Quarry, Cornwall two or three micro crystals on small...wave U.V. lxl £2.50 _ ~x2£5 f'LUORESCENl 676 ARAGONITE Aragon Spain individual pinkish hexagonal crystal |  | | Journal (issue) | | absorbs only some of the wavelengths in the visible region of the spectrum, the sample will exhibit a color...of UV light results in emission in the infrared region, lower in energy than visible light.) This means...calcite from Franklin, NJ and from the Medford quarry here in MD is due to Mn2+), but Mn3+ ions do not... Other minerals in the calcite group such as magnesite and smithsonite often fluoresce, but not siderite...not ankerite, which contains Fe2+) and aragonite group (aragonite, cerussite, strontianite, and witherite) |  | | Book | | augite, hornblende, wolframite) (3) orthorhombic (aragonite, antimonite, marcasite, barytes, topaz) (4) tetragonal... b) orthoclase (so-called Carlsbad Twin), c) aragonite. A single crystal is sometimes made up of two...intergrowths, we distinguish contact twins (gypsum, aragonite), and interpenetrated twins (fluorite). Crystal...mineral of identical chemical composition. Thus, aragonite (orthorhombic 16 calcium carbonate CaCQs) changes...in Butte, Montana (USA), in the Lake Superior region, Michigan, and in former Yugoslavia; bedded deposits |
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