Cambridge University Press 978-1-107-10626-0 — Minerals 2Nd Edition Index More Information
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Mineral Classifications-No Links
CLASSIFYING MINERALS Minerals are divided into nine (9) broad classifications. They are typically classified based on the negatively charged (anionic) portion of their chemical composition. For example, copper oxide (CuO) consists of copper (Cu ++ ) and oxygen (O -- ) ions, and the negatively charged oxygen ion puts it in the “Oxide” classification (which also includes iron oxide, titanium dioxide, etc). The classifications are: Silicate class The largest group of minerals by far, the silicates are mostly composed of silicon and oxygen, combined with ions like aluminum, magnesium, iron, and calcium. Some important rock-forming silicates include the feldspars, quartz, olivines, pyroxenes, garnets, and micas. Carbonate class 2− The carbonate minerals contain the anion (CO 3) . They are deposited in marine settings from accumulated shells of marine life and also in evaporitic areas like the Great Salt Lake and karst regions where they form caves, stalactites and stalagmites. Typical carbonates include calcite and aragonite (both calcium carbonate), dolomite (magnesium/calcium carbonate) and siderite (iron carbonate). The carbonate class also includes the nitrate and borate minerals. Sulfate class 2− Sulfate minerals all contain the sulfate anion, SO 4 . Sulfates commonly form in evaporitic settings where highly saline waters slowly evaporate, in hydrothermal vein systems as gangue minerals and as secondary oxidation products of original sulfide minerals. Common sulfates include anhydrite (calcium sulfate), celestine (strontium sulfate), barite (barium sulfate), and gypsum (hydrated calcium sulfate). The sulfate class also includes the chromate, molybdate, selenate, sulfite, tellurate, and tungstate minerals. Halide class The halide minerals form the natural salts and include fluorite (calcium fluoride), halite (sodium chloride) and sylvite (potassium chloride). -
A Review of the Structural Architecture of Tellurium Oxycompounds
Mineralogical Magazine, May 2016, Vol. 80(3), pp. 415–545 REVIEW OPEN ACCESS A review of the structural architecture of tellurium oxycompounds 1 2,* 3 A. G. CHRISTY ,S.J.MILLS AND A. R. KAMPF 1 Research School of Earth Sciences and Department of Applied Mathematics, Research School of Physics and Engineering, Australian National University, Canberra, ACT 2601, Australia 2 Geosciences, Museum Victoria, GPO Box 666, Melbourne, Victoria 3001, Australia 3 Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA [Received 24 November 2015; Accepted 23 February 2016; Associate Editor: Mark Welch] ABSTRACT Relative to its extremely low abundance in the Earth’s crust, tellurium is the most mineralogically diverse chemical element, with over 160 mineral species known that contain essential Te, many of them with unique crystal structures. We review the crystal structures of 703 tellurium oxysalts for which good refinements exist, including 55 that are known to occur as minerals. The dataset is restricted to compounds where oxygen is the only ligand that is strongly bound to Te, but most of the Periodic Table is represented in the compounds that are reviewed. The dataset contains 375 structures that contain only Te4+ cations and 302 with only Te6+, with 26 of the compounds containing Te in both valence states. Te6+ was almost exclusively in rather regular octahedral coordination by oxygen ligands, with only two instances each of 4- and 5-coordination. Conversely, the lone-pair cation Te4+ displayed irregular coordination, with a broad range of coordination numbers and bond distances. -
Design Rules for Discovering 2D Materials from 3D Crystals
Design Rules for Discovering 2D Materials from 3D Crystals by Eleanor Lyons Brightbill Collaborators: Tyler W. Farnsworth, Adam H. Woomer, Patrick C. O'Brien, Kaci L. Kuntz Senior Honors Thesis Chemistry University of North Carolina at Chapel Hill April 7th, 2016 Approved: ___________________________ Dr Scott Warren, Thesis Advisor Dr Wei You, Reader Dr. Todd Austell, Reader Abstract Two-dimensional (2D) materials are championed as potential components for novel technologies due to the extreme change in properties that often accompanies a transition from the bulk to a quantum-confined state. While the incredible properties of existing 2D materials have been investigated for numerous applications, the current library of stable 2D materials is limited to a relatively small number of material systems, and attempts to identify novel 2D materials have found only a small subset of potential 2D material precursors. Here I present a rigorous, yet simple, set of criteria to identify 3D crystals that may be exfoliated into stable 2D sheets and apply these criteria to a database of naturally occurring layered minerals. These design rules harness two fundamental properties of crystals—Mohs hardness and melting point—to enable a rapid and effective approach to identify candidates for exfoliation. It is shown that, in layered systems, Mohs hardness is a predictor of inter-layer (out-of-plane) bond strength while melting point is a measure of intra-layer (in-plane) bond strength. This concept is demonstrated by using liquid exfoliation to produce novel 2D materials from layered minerals that have a Mohs hardness less than 3, with relative success of exfoliation (such as yield and flake size) dependent on melting point. -
By Michael Fleischer and Constance M. Schafer Open-File Report 81
U.S. DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY THE FORD-FLEISCHER FILE OF MINERALOGICAL REFERENCES, 1978-1980 INCLUSIVE by Michael Fleischer and Constance M. Schafer Open-File Report 81-1174 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards 1981 The Ford-Fleischer File of Mineralogical References 1978-1980 Inclusive by Michael Fleischer and Constance M. Schafer In 1916, Prof. W.E. Ford of Yale University, having just published the third Appendix to Dana's System of Mineralogy, 6th Edition, began to plan for the 7th Edition. He decided to create a file, with a separate folder for each mineral (or for each mineral group) into which he would place a citation to any paper that seemed to contain data that should be considered in the revision of the 6th Edition. He maintained the file in duplicate, with one copy going to Harvard University, when it was agreed in the early 1930's that Palache, Berman, and Fronde! there would have the main burden of the revision. A number of assistants were hired for the project, including C.W. Wolfe and M.A. Peacock to gather crystallographic data at Harvard, and Michael Fleischer to collect and evaluate chemical data at Yale. After Prof. Ford's death in March 1939, the second set of his files came to the U.S. Geological Survey and the literature has been covered since then by Michael Fleischer. Copies are now at the U.S. Geological Survey at Reston, Va., Denver, Colo., and Menlo Park, Cal., and at the U.S. -
GEUS No 190.Pmd
G E O L O G Y O F G R E E N L A N D S U R V E Y B U L L E T I N 1 9 0 · 2 0 0 1 The Ilímaussaq alkaline complex, South Greenland: status of mineralogical research with new results Edited by Henning Sørensen Contributions to the mineralogy of Ilímaussaq, no. 100 Anniversary volume with list of minerals GEOLOGICAL SURVEY OF DENMARK AND GREENLAND MINISTRY OF THE ENVIRONMENT 1 Geology of Greenland Survey Bulletin 190 Keywords Agpaite, alkaline, crystallography, Gardar province, geochemistry, hyper-agpaite, Ilímaussaq, mineralogy, nepheline syenite, peral- kaline, Mesoproterozoic, rare-element minerals, South Greenland. Cover Igneous layering in kakortokites in the southern part of the Ilímaussaq alkaline complex, South Greenland. The central part of the photograph shows the uppermost part of the layered kakortokite series and the overlying transitional kakortokites and aegirine lujavrite on Laksefjeld (680 m), the dark mountain in the left middle ground of the photograph. The cliff facing the lake in the right middle ground shows the kakortokite layers + 4 to + 9. The kakortokite in the cliff on the opposite side of the lake is rich in xenoliths of roof rocks of augite syenite and naujaite making the layering less distinct. On the skyline is the mountain ridge Killavaat (‘the comb’), the highest peak 1216 m, which is made up of Proterozoic granite which was baked and hardened at the contact to the intrusive complex. The lake (987 m) in the foreground is intensely blue and clear because it is practically devoid of life. -
On the Spectra Luminescence Emission of Natural Coal and Graphite Specimens
1 2 3 ON THE SPECTRA LUMINESCENCE EMISSION OF 4 NATURAL COAL AND GRAPHITE SPECIMENS 5 6 Irena Kostovaa, Laura Tormob, Elena Crespo-Feoc, Javier Garcia-Guineab, 7 8 aSofia University “St Kliment Ohridski”, Department of Geology and Paleontology, Sofia 1000, Bulgaria 9 bMuseo Nacional Ciencias Naturales, CSIC. C/José Gutiérrez Abascal 2. Madrid 28006, Spain. 10 cFacultad de Ciencias Geologicas. C/Antonio Novais 2. Madrid 28040, Spain. 11 Author for Correspondence: [email protected] 12 13 ABSTRACT 14 The little luminescence shown by coals has been attributed to accessorial minerals and 15 poly-nuclear aromatic hydrocarbons, such as exinite, vitrinite or inertinite, while the 16 luminescence quenching has been found in coal-hydrogenation asphaltenes and 17 pyridine extracts. Nowadays, the spatial resolution and the improved luminescence 18 efficiency of the modern spectrometers allow explain some details on the luminescent 19 emission centers in the same theoretical frame. Accordingly, we selected Museum 20 historical coals specimens with different rank, i.e., peat, lignite, sub-bituminous, 21 bituminous, anthracite, to be analyzed by the spectra cathodoluminescence probe (CL) 22 of an environmental scanning electron microscopy (ESEM) with an energy dispersive 23 spectrometry analyzer (EDS). Additional analytical controls were also performed by X- 24 ray diffraction (XRD), X-ray fluorescence (XRF) and Raman spectrometries. We 25 conclude that coals may display different luminescence emission features from several 26 sources, as follows: -
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American Mineralogist, Volume 65, pages 599-623, 1980 Microstructures and reaction mechanismsin biopyriboles Devro R. VnnreN AND PETERR. BusEcK Departmentsof Geologysnd Chemistry,Arizona State University Tempe,Arizona 85281 Abstract High-resolution transmission electron microscopy of ferromagnesian chain and sheet sili- cates from a metamorphosed ultramafic body at Chester, Vermont has revealed a wide vari- ety of structural defects.Images of thesemicrostructures have been interpreted by analogy with images of ordered chain silicates and with the aid of dynamical diflraction and imaging calculations.Most of the defectsare concentratedin regionsof chain-width disorder;they ap- parently result from retrogradereaction ofanthophyllite to talc and from deformation of the ultramafic body. The most common defects are the terminations of (010) slabs having a given chain width. Theseslabs, referred to as "zippers," in most casesterminate coherently,with no displacive planar defects associated with the termination. Two theoretically-derived rules must be obeyedfor coherenttermination. Rule l: the terminating zipper must have the samenumber of subchains as the material it replaces.Rule 2: the numbers of silicate chains in the zipper and in the material it replacesmust both be even, or they must both be odd. Where these rules are disobeyed, zipper terminations are usually associatedwith planar faults having dis- placementsprojected on (001) of either % [010] or t/+[fi)], referred to an anthophyllite cell. In rare cases,violation of the replacement rules results in severestructural distortion, rather than the creation of displacive planar faults. These replacement rules hold for all pyriboles and may [s s6ahqlling factors not only in reactionsinvolving amFhib,ole,but in pyroxene hydration reactions as well. -
American Journal of Science, Vol
[American Journal of Science, Vol. 313, November, 2013,P.807–843, DOI 10.2475/09.2013.01] American Journal of Science NOVEMBER 2013 PALEOMINERALOGY OF THE HADEAN EON: A PRELIMINARY SPECIES LIST ROBERT M. HAZEN* “By the way, were there any clay minerals in the Archean?” Harold Morowitz, December 6, 2006 ABSTRACT. The Hadean Eon, encompassing Earth’s first 550 million years, was a time of significant planetary evolution. Nevertheless, prebiotic Earth’s near-surface environment may have held no more than approximately 420 different rock-forming or accessory mineral species that were widely distributed and/or volumetrically significant. This relative Hadean mineralogical parsimony is a consequence of the limited modes of mineral paragenesis prior to 4 Ga compared to the last 3.0 billion years. Dominant Hadean Eon mineralizing processes include the evolution of a diverse suite of intrusive and extrusive igneous lithologies; hydrothermal alteration over a wide temperature range, notably serpentinization; authigenesis in marine sediments; diagenesis and low-grade metamorphism in near-surface environments; and impact- related processes, including shock mineralization, creation of marginal hydrothermal zones, and excavation of deep metamorphosed terrains. On the other hand, the Hadean Eon may have been notably lacking in mineralization generated by plate tectonic processes, such as subduction zone volcanism and associated fluid-rock interactions, which result in massive sulfide deposition; convergent boundary orogene- sis and consequent extensive granitoid-rooted continental landmasses; and the selec- tion and concentration of incompatible elements in complex pegmatites, with hun- dreds of accompanying minerals. The dramatic mineralogical consequences of life are reflected in the absence of Hadean biomineralization; for example, the lack of extensive carbonate deposits and the associated restricted development of skarn and cave minerals prior to 4 Ga. -
A Quantitative Evaluation of the Modal Distribution Of
A QUANTITATIVE EVALUATION OF THE MODAL DISTRIBUTION OF MINERALS IN COAL DEPOSITS IN THE HIGHVELD AREA ANDTHE ASSOCIATED IMPACT ON THE GENERATION OF ACID AND NEUTRAL MINE DRAINAGE KL Pinetown • RH Boer WRC Report No. 1264/1/06 Water Research Commission A QUANTITATIVE EVALUATION OF THE MODAL DISTRIBUTION OF MINERALS IN COAL DEPOSITS IN THE HIGHVELD AREA AND THE ASSOCIATED IMPACT ON THE GENERATION OF ACID AND NEUTRAL MINE DRAINAGE Report to the Water Research Commission by KL PlNETOWN AND RH BOER on behalf of the Department of Geology University of the Free State WRC Report No. 1264/1/06 ISBN No. 1-77005-440-5 MAY 2006 Disclaimer This report emanates from a project financed by the Water Research Commission (W'RC) and is approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the W'RC or the members of the project steering committee, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. Primed tn Silowa Primers: Hi: Hii4 MM EXECUTIVE SUMMARY The objective of this investigation was to gain a qualitative understanding of the mineralogy of the coal measures occurring in the Highveld coalfield of South Africa. The project focused on the identification of minerals occurring in coal and the understanding of the distribution of these minerals among the various coal seams. Furthermore, the lateral distribution patterns of minerals in coal were researched. In addition, an effort was made to establish the relationship between the mineralogy of the coal and the associated water quality. -
New Mineral Names*
American Mineralogist, Volume 90, pages 1466–1469, 2005 New Mineral Names* PAULA C. PIILONEN† AND T. SCOTT ERCIT‡ Research Division, Canadian Museum of Nature, P.O. Box 3443, Stn. D, Ottawa, Ontario K1P 6P4, Canada CENTROSYMMETRIC ANALOGUE OF LABYRINTHITE NALDRETTITE* K.A. Rosenberg, R.K. Rastsvetayeva, N.V. Chukanov, I.A. Verin L.J. Cabri, A.M. McDonald, C.J. Stanley, N.S. Rudashevsky, (2004) Centrosymmetric modular structure of an analogue of G. Poirier, B.R. Durham, J.E. Mungall, V.N. Rudashevsky labyrinthite. Dokl. Akad. Nauk, 399, 791–794 (in Russian); (2005) Naldrettite, Pd2Sb, a new intermetallic mineral from Dokl. Chem., 399, 253–256 (in English). the Mesamax Northwest deposit, Ungava region, Québec, Canada. Mineral. Mag., 69, 89–97. An apparently new member of the eudialyte group has been found in the central zone of an alkaline pegmatite at Mt. Naldrettite occurs as anhedral grains from 10 to 239 µm Koashva, Khibiny massif, Kola Peninsula, Russia. The mineral (average 74.4 µm). Grains were liberated and isolated from the occurs in tabular grains intimately intergrown with villiaumite, in matrix by hydroseparation. It is often found attached to sulÞ de associations with lomonosovite, barytolamprophyllite, aegirine, minerals and commonly associated with clinochlore. The min- and microcline. The authors infer from this assemblage that the eral is metallic and opaque. It does not show cleavage, has an formational conditions included relatively high temperature and irregular fracture, a ductile behavior (ß exibly inelastic), and has high sodium and ß uorine activity. The mineral is dichroic brown- a Mohs hardness of 4 to 5 (average VHN50 load of 393 in the gray to raspberry-pink. -
References Cited in the Database (Asbestos Sites.Xls)
References Cited in the Database (asbestos_sites.xls) Adams, J.H., 1870, Notice of asbestus and corundum with other minerals at Pelham, Mass.: American Journal of Science and Arts, v. 49, no. 146, p. 271-272. Allen, R.M., Jr., 1963, Geology and mineral resources of Greene and Madison Counties: Virginia Division of Mineral Resources Bulletin 78, 102 p., 1 plate, scale 1:62,500. Allen, R.M., Jr., 1967, Geology and mineral resources of Page County: Virginia Division of Mineral Resources Bulletin 81, 78 p., 1 plate, scale 1:62,500. Anonymous, 1944, Mad River talc mine, Washington County, Vt.: U.S. Bureau of Mines War Minerals Report 222, 22 p. Anonymous, 1970, World asbestos industry—United States: Industrial Minerals, no. 28 (January 1970), p. 22-23. Bain, G.W., 1942, Vermont talc and asbestos deposits, in Newhouse, W.H., ed., Ore deposits as related to structural features: Princeton, N.J., Princeton University Press, p. 255-258. Bangs, Herbert, 1946, Asbestos in Maryland: Baltimore, Md., Natural History Society of Maryland, Maryland Journal of Natural History, v. 16, no. 4, p. 67-73. Baum, J.L., 1962, The Franklin ore body, in Northern Field Excursion Guidebook, International Mineralogical Association, Third General Congress, Washington, D.C.: International Mineralogical Association, p. 19-21. Beard, M.E., Crankshaw, O.S., Ennis, J.T., and Moore, C.E., 2001, Analysis of crayons for asbestos and other fibrous materials, and recommendations for improved analytical definitions—Executive summary: Research Triangle Park, N.C., Research Triangle Institute, Center for Environmental Measurements and Quality Assurance, Earth and Mineral Sciences Department, [informal report], 8 p. -
New Mineral Names
American Mineralogist, Volume 80, pages 630-635, 1995 NEW MINERAL NAMES. JOHN L. JAMBOR Departmentof Earth Sciences,Universityof Waterloo,Waterloo,OntarioN2L 3Gl, Canada VLADIMIR A. KOVALENKER IGREM RAN, Russian Academy of Sciences, Moscow 10917, Staromonetnii 35, Russia ANDREW C. ROBERTS Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario KIA OE8, Canada Briziite* Co and increased Ni content in conireite, the name allud- F. Olmi, C. Sabelli (1994) Briziite, NaSb03, a new min- ing to the principal cations Co-Ni-Fe. eral from the Cetine mine (Tuscany, Italy): Description Discussion. An unapproved name for an incompletely and crystal structure. Eur. Jour. MineraL, 6, 667-672. described mineral. J.L.J. The mineral occurs as light pink to yellow, compact aggregates of platy to thin tabular crystals that encrust Grossite* weathered waste material and slag at the Cetine antimony D. Weber, A Bischoff(1994) Grossite (CaAl.O,)-a rare (stibnite) mine near Siena, Tuscany, Italy. Electron mi- phase in terrestrial rocks and meteorites. Eur. Jour. croprobe analysis gave Na20 15.98, Sb20s 83.28 wt%, Mineral., 6,591-594. corresponding to NaSb03. Platy crystals are hexagonal in D. Weber, A Bischoff (1994) The occurrence of grossite outline, up to 0.2 mm across, colorless, transparent, white (CaAl.O,) in chondrites. Geochim. Cosmochim. Acta, streak, pearly luster, perfect {001} cleavage, flexible, 58,3855-3817. VHNIS = 57 (41-70), nonfluorescent, polysynthetically twinned on (100), Dmeas= 4.8(2), Deale= 4.95 g/cm3 for Z Electron microprobe analysis gave CaO 21.4, A1203 = 6. Optically uniaxial negative, E= 1.631(1), w = 1.84 17.8, FeO 0.31, Ti02 0.15, Si02 0.11, MgO 0.06, sum (calculated).