Review 1 Sb5+ and Sb3+ Substitution in Segnitite
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Download PDF About Minerals Sorted by Mineral Name
MINERALS SORTED BY NAME Here is an alphabetical list of minerals discussed on this site. More information on and photographs of these minerals in Kentucky is available in the book “Rocks and Minerals of Kentucky” (Anderson, 1994). APATITE Crystal system: hexagonal. Fracture: conchoidal. Color: red, brown, white. Hardness: 5.0. Luster: opaque or semitransparent. Specific gravity: 3.1. Apatite, also called cellophane, occurs in peridotites in eastern and western Kentucky. A microcrystalline variety of collophane found in northern Woodford County is dark reddish brown, porous, and occurs in phosphatic beds, lenses, and nodules in the Tanglewood Member of the Lexington Limestone. Some fossils in the Tanglewood Member are coated with phosphate. Beds are generally very thin, but occasionally several feet thick. The Woodford County phosphate beds were mined during the early 1900s near Wallace, Ky. BARITE Crystal system: orthorhombic. Cleavage: often in groups of platy or tabular crystals. Color: usually white, but may be light shades of blue, brown, yellow, or red. Hardness: 3.0 to 3.5. Streak: white. Luster: vitreous to pearly. Specific gravity: 4.5. Tenacity: brittle. Uses: in heavy muds in oil-well drilling, to increase brilliance in the glass-making industry, as filler for paper, cosmetics, textiles, linoleum, rubber goods, paints. Barite generally occurs in a white massive variety (often appearing earthy when weathered), although some clear to bluish, bladed barite crystals have been observed in several vein deposits in central Kentucky, and commonly occurs as a solid solution series with celestite where barium and strontium can substitute for each other. Various nodular zones have been observed in Silurian–Devonian rocks in east-central Kentucky. -
JAROSITE in ANCIENT TERRESTRIAL ROCKS: IMPLICATIONS for UNDERSTANDING MARS DIAGENESIS and HABITABILITY. S.L. Potter-Mcintyre1 and T.M
Lunar and Planetary Science XLVIII (2017) 1237.pdf JAROSITE IN ANCIENT TERRESTRIAL ROCKS: IMPLICATIONS FOR UNDERSTANDING MARS DIAGENESIS AND HABITABILITY. S.L. Potter-McIntyre1 and T.M. McCollom2, 1Southern Illinois University, Geology Department, Parkinson Lab Mailcode 4324, Carbondale, IL, 62901, [email protected], 2LASP, CU Boulder, 1234 Innovation Drive, Boulder, CO 80303. Introduction: Sulfate minerals of the alunite- jarosite family have been identified in stratified depos- its at numerous locations across Mars, including two of the rover landing sites [e.g., 1,2,3, 4]. Because these minerals typically precipitate from aqueous solutions and are stable only under acidic conditions, there has been considerable interest in studying their occurrence in martian settings as indicators of depositional and diagenetic conditions on early Mars [e.g., 3]. Many terrestrial occurrences of jarosite and alunite that have been proposed as analogs for these minerals have no clear relevance to the geologic setting where they occur on Mars. In southern Utah, however, Jurassic sand- stones at Mollies Nipple (MN) contain jarosite and alunite cements whose characteristics may be very sim- ilar to the stratified deposits on Mars. In addition, pre- vious studies have indicated these deposits to be spec- trally similar to many of the martian deposits [5,6]. Although the rocks at MN are early to middle Ju- rassic, the diagenetic history that resulted in the precip- itation of the jarosite and alunite cements is not under- stood. The results of the investigation will be used to gain insights into the origin and persistence of mineral from the alunite-jarosite family in martian settings. -
Mineral Processing
Mineral Processing Foundations of theory and practice of minerallurgy 1st English edition JAN DRZYMALA, C. Eng., Ph.D., D.Sc. Member of the Polish Mineral Processing Society Wroclaw University of Technology 2007 Translation: J. Drzymala, A. Swatek Reviewer: A. Luszczkiewicz Published as supplied by the author ©Copyright by Jan Drzymala, Wroclaw 2007 Computer typesetting: Danuta Szyszka Cover design: Danuta Szyszka Cover photo: Sebastian Bożek Oficyna Wydawnicza Politechniki Wrocławskiej Wybrzeze Wyspianskiego 27 50-370 Wroclaw Any part of this publication can be used in any form by any means provided that the usage is acknowledged by the citation: Drzymala, J., Mineral Processing, Foundations of theory and practice of minerallurgy, Oficyna Wydawnicza PWr., 2007, www.ig.pwr.wroc.pl/minproc ISBN 978-83-7493-362-9 Contents Introduction ....................................................................................................................9 Part I Introduction to mineral processing .....................................................................13 1. From the Big Bang to mineral processing................................................................14 1.1. The formation of matter ...................................................................................14 1.2. Elementary particles.........................................................................................16 1.3. Molecules .........................................................................................................18 1.4. Solids................................................................................................................19 -
Mineralogical Study of the Advanced Argillic Alteration Zone at the Konos Hill Mo–Cu–Re–Au Porphyry Prospect, NE Greece †
Article Mineralogical Study of the Advanced Argillic Alteration Zone at the Konos Hill Mo–Cu–Re–Au Porphyry Prospect, NE Greece † Constantinos Mavrogonatos 1,*, Panagiotis Voudouris 1, Paul G. Spry 2, Vasilios Melfos 3, Stephan Klemme 4, Jasper Berndt 4, Tim Baker 5, Robert Moritz 6, Thomas Bissig 7, Thomas Monecke 8 and Federica Zaccarini 9 1 Faculty of Geology & Geoenvironment, National and Kapodistrian University of Athens, 15784 Athens, Greece; [email protected] 2 Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA 50011, USA; [email protected] 3 Faculty of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; [email protected] 4 Institut für Mineralogie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany; [email protected] (S.K.); [email protected] (J.B.) 5 Eldorado Gold Corporation, 1188 Bentall 5 Burrard St., Vancouver, BC V6C 2B5, Canada; [email protected] 6 Department of Mineralogy, University of Geneva, CH-1205 Geneva, Switzerland; [email protected] 7 Goldcorp Inc., Park Place, Suite 3400-666, Burrard St., Vancouver, BC V6C 2X8, Canada; [email protected] 8 Center for Mineral Resources Science, Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, USA; [email protected] 9 Department of Applied Geosciences and Geophysics, University of Leoben, Leoben 8700, Austria; [email protected] * Correspondence: [email protected]; Tel.: +30-698-860-8161 † The paper is an extended version of our paper published in 1st International Electronic Conference on Mineral Science, 16–21 July 2018. Received: 8 October 2018; Accepted: 22 October 2018; Published: 24 October 2018 Abstract: The Konos Hill prospect in NE Greece represents a telescoped Mo–Cu–Re–Au porphyry occurrence overprinted by deep-level high-sulfidation mineralization. -
Minerals of the San Luis Valley and Adjacent Areas of Colorado Charles F
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/22 Minerals of the San Luis Valley and adjacent areas of Colorado Charles F. Bauer, 1971, pp. 231-234 in: San Luis Basin (Colorado), James, H. L.; [ed.], New Mexico Geological Society 22nd Annual Fall Field Conference Guidebook, 340 p. This is one of many related papers that were included in the 1971 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
UV-Shielding Properties of Fe (Jarosite) Vs. Ca (Gypsum) Sulphates
Astrobiological significance of minerals on Mars surface environment: UV-shielding properties of Fe (jarosite) vs. Ca (gypsum) sulphates Gabriel Amaral1, Jesus Martinez-Frias2, Luis Vázquez2,3 1 Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain; Tel: 34-91-394-4305/4321, Fax: 34-91-394-4135, e-mail: [email protected] 2 Centro de Astrobiología (CSIC-INTA), 28850 Torrejón de Ardoz, Madrid, Spain, Tel: 34-91-520-6418, Fax: 34-91-520-1621, e-mail: [email protected] 3 Departamento de Matemática Aplicada, Facultad de Informática, Universidad Complutense de Madrid, 28040 Madrid, Spain, Tel: +34-91-3947612, Fax: +34- 91-3947510, e-mail: [email protected] &RUUHVSRQGLQJDXWKRU Jesús Martinez-Frias ([email protected]) 1 $EVWUDFW The recent discovery of liquid water-related sulphates on Mars is of great astrobiological interest. UV radiation experiments, using natural Ca and Fe sulphates (gypsum, jarosite), coming from two selected areas of SE Spain (Jaroso Hydrothermal System and the Sorbas evaporitic basin), were performed using a Xe Lamp with an integrated output from 220 nm to 500 nm of 1.2 Wm-2. The results obtained demonstrate a large difference in the UV protection capabilities of both minerals and also confirm that the mineralogical composition of the Martian regolith is a crucial shielding factor. Whereas gypsum showed a much higher transmission percentage, jarosite samples, with a thickness of only 500 µm, prevented transmission. This result is extremely important for the search for life on Mars as: a) jarosite typically occurs on Earth as alteration crusts and patinas, and b) a very thin crust of jarosite on the surface of Mars would be sufficient to shield microorganisms from UV radiation. -
Mobilisation of Arsenic, Selenium and Uranium from Carboniferous Black Shales in West Ireland T ⁎ Joseph G.T
Applied Geochemistry 109 (2019) 104401 Contents lists available at ScienceDirect Applied Geochemistry journal homepage: www.elsevier.com/locate/apgeochem Mobilisation of arsenic, selenium and uranium from Carboniferous black shales in west Ireland T ⁎ Joseph G.T. Armstronga, , John Parnella, Liam A. Bullocka,b, Adrian J. Boycec, Magali Perezd, Jörg Feldmannd a School of Geosciences, University of Aberdeen, Meston Building, Aberdeen, AB24 3UE, UK b Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH, UK c Scottish Universities Environmental Research Centre, University of Glasgow, Rankine Avenue, Scottish Enterprise Technology Park, East Kilbride, Glasgow, G75 0QF, UK d Trace Element Speciation Laboratory, School of Natural and Computing Science, University of Aberdeen, Meston Building, Aberdeen, AB24 3UE, UK ARTICLE INFO ABSTRACT Editorial handling by Prof. M. Kersten The fixation and accumulation of critical elements in the near surface environment is an important factor in Keywords: understanding elemental cycling through the crust, both for exploration of new resources and environmental Black shale management strategies. Carbonaceous black shales are commonly rich in trace elements relative to global crustal Carboniferous averages, many of which have potential environmental impacts depending on their speciation and mobility at Regolith surface. This trace element mobility can be investigated by studying the secondary mineralisation (regolith) Secondary mineralisation associated with black shales at surface. In this study, Carboniferous shales on the west coast of Ireland are found Oxidation to have higher than average shale concentrations of As, Cd, Cu, Co, Mo, Ni, Se, Te and U, similar to the laterally Jarosite equivalent Bowland Shales, UK. -
Figure 2. (A) Jarosite- and Alunite/Kaolinite-Cemented Sandstones Near the Top of Mollies Nipple
Fourth Conference on Early Mars 2017 (LPI Contrib. No. 2014) 3009.pdf JAROSITE AND ALUNITE CEMENTS IN JURRASIC SANDSTONES OF UTAH AND NEVADA, A POTENTIAL ANALOG FOR STRATIFIED SULFATE DEPOSITS ON EARLY MARS. T. M. McCollom1 and S. L. Potter-McIntyre2, 1LASP, University of Colorado, Boulder ([email protected]), 2Department of Geology, Southern Illinois University. Introduction: Sulfate minerals of the alunite- jarosite family have been identified in stratified depos- its at numerous locations across Mars, including two of the rover landing sites [e.g., 1-4]. Because these min- erals precipitate from acidic aqueous solutions, there has been considerable interest in studying their occur- rence in martian settings as indicators of depositional and diagenetic conditions on early Mars. In many martian deposits, the occurrence on minerals from the alunite-jarosite family within stratified formations sug- gests that the minerals may have been deposited during emplacement of the strata as sediments, or during dia- Figure 1. Overview of Mollies Nipple. Red line genetic alteration of the strata. However, occurrences delineates the approximate base of caprocks cement- of jarosite and alunite in sedimentary settings have ed by jarosite or alunite plus kaolinite. Jarosite- and received only limited study as martian analogs, with alunite-bearing float rocks eroded from the caprock most attention focused on weathering of sulfide miner- cover much of the lower slopes of the butte. White als or volcanic hydrothermal environments [e.g., 5-7]. exposed areas are bleached Navajo Sandstone. In southern Utah, Jurassic sandstones at Mollies Geologic setting: Mollies Nipple is a prominent Nipple (MN) contain abundant jarosite and alunite butte located in southern Utah that rises ~200 m above cements [8,9] whose depositional characteristics and the surrounding landscape (Fig. -
Mineralogical and Chemical Characteristics of Some Natural Jarosites
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- Published Research US Geological Survey 2010 Mineralogical and Chemical Characteristics of Some Natural Jarosites George A. Desborough U.S. Geological Survey, Box 25046, M.S. 973, Denver, CO 80225-0046, USA Kathleen S. Smith U.S. Geological Survey, Box 25046, M.S. 964D, Denver, CO 80225-0046 , USA Heather A. Lowers U.S. Geological Survey, Box 25046, M.S. 973, Denver, CO 80225-0046, USA Gregg A. Swayze U.S. Geological Survey, Box 25046, M.S. 964D, Denver, CO 80225-0046 , USA Jane M. Hammarstrom U.S. Geological Survey, 12201 Sunrise Valley Drive Mail Stop 954, Reston, VA 20192, USA See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/usgsstaffpub Part of the Earth Sciences Commons Desborough, George A.; Smith, Kathleen S.; Lowers, Heather A.; Swayze, Gregg A.; Hammarstrom, Jane M.; Diehl, Sharon F.; Leinz, Reinhard W.; and Driscoll, Rhonda L., "Mineralogical and Chemical Characteristics of Some Natural Jarosites" (2010). USGS Staff -- Published Research. 332. https://digitalcommons.unl.edu/usgsstaffpub/332 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- Published Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors George A. Desborough, Kathleen S. Smith, Heather A. Lowers, Gregg A. Swayze, Jane M. Hammarstrom, Sharon F. Diehl, Reinhard W. Leinz, and Rhonda L. Driscoll This article is available at DigitalCommons@University of Nebraska - Lincoln: https://digitalcommons.unl.edu/ usgsstaffpub/332 Available online at www.sciencedirect.com Geochimica et Cosmochimica Acta 74 (2010) 1041–1056 www.elsevier.com/locate/gca Mineralogical and chemical characteristics of some natural jarosites George A. -
A Geological and Geochemical Study of a Sedimentary-Hosted Turquoise Deposit at the Iron Mask Mine, Orogrande, New Mexico Josh C
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/65 A geological and geochemical study of a sedimentary-hosted turquoise deposit at the Iron Mask mine, Orogrande, New Mexico Josh C. Crook and Virgil W. Lueth, 2014, pp. 227-233 Supplemental data available: http://nmgs.nmt.edu/repository/index.cfm?rid=2014004 in: Geology of the Sacramento Mountains Region, Rawling, Geoffrey; McLemore, Virginia T.; Timmons, Stacy; Dunbar, Nelia; [eds.], New Mexico Geological Society 65th Annual Fall Field Conference Guidebook, 318 p. This is one of many related papers that were included in the 2014 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. -
Thirty-Seventh List of New Mineral Names. Part 1" A-L
Thirty-seventh list of new mineral names. Part 1" A-L A. M. CLARK Department of Mineralogy, The Natural History Museum, Cromwell Road, London SW7 5BD, UK AND V. D. C. DALTRYt Department of Geology and Mineralogy, University of Natal, Private Bag XO1, Scottsville, Pietermaritzburg 3209, South Africa THE present list is divided into two sections; the pegmatites at Mount Alluaiv, Lovozero section M-Z will follow in the next issue. Those Complex, Kola Peninsula, Russia. names representing valid species, accredited by the Na19(Ca,Mn)6(Ti,Nb)3Si26074C1.H20. Trigonal, IMA Commission on New Minerals and Mineral space group R3m, a 14.046, c 60.60 A, Z = 6. Names, are shown in bold type. Dmeas' 2.76, Dc~ac. 2.78 g/cm3, co 1.618, ~ 1.626. Named for the locality. Abenakiite-(Ce). A.M. McDonald, G.Y. Chat and Altisite. A.P. Khomyakov, G.N. Nechelyustov, G. J.D. Grice. 1994. Can. Min. 32, 843. Poudrette Ferraris and G. Ivalgi, 1994. Zap. Vses. Min. Quarry, Mont Saint-Hilaire, Quebec, Canada. Obschch., 123, 82 [Russian]. Frpm peralkaline Na26REE(SiO3)6(P04)6(C03)6(S02)O. Trigonal, pegmatites at Oleny Stream, SE Khibina alkaline a 16.018, c 19.761 A, Z = 3. Named after the massif, Kola Peninsula, Russia. Monoclinic, a Abenaki Indian tribe. 10.37, b 16.32, c 9.16 ,~, l~ 105.6 ~ Z= 2. Named Abswurmbachite. T. Reinecke, E. Tillmanns and for the chemical elements A1, Ti and Si. H.-J. Bernhardt, 1991. Neues Jahrb. Min. Abh., Ankangite. M. Xiong, Z.-S. -
Mawbyite Pbfe2 (Aso4)2(OH)2 C 2001-2005 Mineral Data Publishing, Version 1 Crystal Data: Monoclinic
3+ Mawbyite PbFe2 (AsO4)2(OH)2 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic. Point Group: 2/m. Crystals, to 0.2 mm, show {101}, {110}, {001}, “dogtooth” to prismatic k [001]; typically in hemispherical, cylindrical, and spongy sheaflike aggregates, druses, and crusts. Twinning: “V”-shaped, about {100}, common. Physical Properties: Cleavage: On {001}, good. Fracture: Conchoidal. Hardness = ∼4 D(meas.) = n.d. D(calc.) = 5.365 Optical Properties: Transparent to translucent. Color: Pale orange, orange-brown to reddish brown. Streak: Yellow-orange. Luster: Adamantine. Optical Class: Biaxial (–). Pleochroism: Faint; brown to reddish brown. Orientation: Y = b; X ' c. α = 1.94(2) β = 2.00(2) γ = 2.04(2) 2V(meas.) = 80(5)◦ Cell Data: Space Group: C2/m. a = 9.066(4) b = 6.286(3) c = 7.564(3) β = 114.857(5)◦ Z=2 X-ray Powder Pattern: Broken Hill, Australia. 4.647 (100), 3.245 (100), 2.724 (70), 2.546 (50), 2.860 (40), 4.458 (30), 3.136 (30) Chemistry: (1) (2) (1) (2) P2O5 0.23 ZnO 0.82 As2O5 34.90 36.44 PbO 37.91 35.38 Al2O3 0.02 H2O [2.46] 2.85 Fe2O3 23.66 25.33 Total [100.00] 100.00 (1) Broken Hill, Australia; by electron microprobe, total Fe as Fe2O3, H2Oby difference; corresponds to Pb1.11(Fe1.94Zn0.07)Σ=2.01[(As0.99P0.01)Σ=1.00O4]2(OH)1.79. (2) PbFe2(AsO4)2(OH)2. Polymorphism & Series: Dimorphous with carminite. Mineral Group: Tsumcorite group. Occurrence: In an arsenic-rich reaction halo in fractures and cavities in a spessartine-quartz rock in the oxidization zone of a metamorphosed stratiform Pb–Zn orebody (Broken Hill, Australia); in the oxidization zone of Ag–Pb–Cu–Bi mineralization in fluorite–barite–quartz veins (Moldava, Czech Republic).