 | | Journal (article/letter/editorial) | | considering Mdssbauer data for ferrous ions in almandine, an unambiguous choice can be made between the...proposed for the five 3d levels of ferrous ions in almandine. Based on the quadrupole splitting value and dependence...examine these two models for the ferrous ion in almandine and to introduce further evidenceinto this problem...quadrupole splitting data for the ferrous site in almandine. The Two Models (a) The Model of White and Moore...Based on the geometry of the ferrous site in almandine describedby Novak and Gibbs (1971) and on I Present |  | | Journal (article/letter/editorial) | | garnet shows a core-to-rim variation: 70–81% almandine, 7–10% pyrope, 10–2% spessartine, 14–8% grossular...Paterson et al. 1994). In the Cascades Core, the Ingalls Ophiolite Complex was thrust over the Chiwaukum...regional metamorphism may predate emplacement of the Ingalls ophiolite complex and pluton emplacement during...Migmatitic Gneiss (within the Chiwaukum Schist), and Ingalls Ophiolite Complex (Fig. 3). These largely metasedimentary...zoned from core to rim, with the proportion of almandine and pyrope components increasing from 70 to 81 |  | | Journal (article/letter/editorial) | | comprehensive listing, including detailed spot locations on county road maps, refer to this publication, which can...The price is $5.00 plus 4% sales tax. Individual county road maps can be obtained from the North Carolina...Carolina 27611 B. J . M C K E N Z I E Alamance County Pyrophyllite, cacoxenite, diaspore, sericite, pyrite...hill, 0.2 mile from the road. Alexander County Alexander County is a renowned mineral collecting area in...following are mineral collecting sites in Alexander County: 1) Emerald, rutilated quartz, smoky quartz, and |  | | Journal (article/letter/editorial) | | Underground Gold Mine Figure 1. according to Huntley Ingalls, this amazing sample, containing gold as wires... piece was saved and was later given to edgar Ingalls as a gift from the wife of one of the early mine...2. The Maryland mine, ca. 1920. Photo from the Ingalls collection, which is now owned by the National...parkermineral@comcast.net Figure 3 (left). Edgar Ingalls in 1919, in the north drift at the 100-foot level...deposit just blasted from the vein. Photo from the Ingalls collection, courtesy of the National Park Service |  | Lin, J.-F., Gavriliuk, Alexander. G., Sturhahn, W., Jacobsen, S. D., Zhao, J., Lerche, M., Hu, M. (2009) Synchrotron Mossbauer spectroscopic study of ferropericlase at high pressures and temperatures. American Mineralogist, 94 (4) 594-599 doi:10.2138/am.2009.3108 | Journal (article/letter/editorial) | | values at constant pressures using Equation 2 (Ingalls 1964; Bancroft 1973). Figure 2. Representative...site in ferropericlase using Ingalls’ model (Ingalls 1964). In Ingalls’ model, the octahedral high-spin...the lower 3d energy levels, ∆1 and ∆2 (Fig. 4c) (Ingalls 1964; Hazony and Axtmann 1971; Bancroft 1973)....of opposite sign to the valence contribution (Ingalls 1964). Neglecting the lattice contribution, and...constant and T∆ is ∆3/k in Kelvin (Figs. 3–5) (Ingalls 1964; Bancroft 1973). The T∆ and ∆3 can thus be |  | Mao, Z., Lin, J.-F., Huang, S., Chen, J., Xiao, Y., Chow, P. (2013) Synchrotron Mossbauer study of Fe-bearing pyrope at high pressures and temperatures. American Mineralogist, 98 (7) 1146-1152 doi:10.2138/am.2013.4321 | Journal (article/letter/editorial) | | An increase in the Fe content in the pyrope-almandine series only slightly decreases the QS and CS of...The pyrope (Mg3Al2Si3O12; abbreviated as py)-almandine (Fe3Al2Si3O12; abbreviated as alm) solid solution...geological abundance, physical properties of pyrope-almandine have attracted extensive research interest, including...d z2 4390 cm d x2-y2 -1 1100 cm-1 Pyrope-Almandine 7086 cm-1 6286 cm-1 -1 c =10800 cm free ion...mantle. Increasing the Fe content in the pyrope-almandine system slightly increases the QS and CS values |  | Quartieri, Simona, Antonioli, G., Artioli, G., Geiger, C. A., Lottici, P. P. (1997) A temperature dependent X-ray Absorption Fine Structure study of dynamic X-site disorder in almandine: a comparison to diffraction data. Physics and Chemistry of Minerals, 24 (3) 200-205 doi:10.1007/s002690050033 | Journal (article/letter/editorial) | | Structure study of dynamic X-site disorder in almandine: a comparison to diffraction data Received December...temperature range 20-473K at the Fe K-edge of synthetic almandine (Fe3Al2Si3O12) allow us to determine the temperature...single-crystal X-ray diffraction (XRD) study on almandine and are interpreted on the basis of the Einstein...Ungaretti et al. 1995 and references therein). In almandine, Fe3Al2Si3O12, the octahedral site is fully occupied...Grossular: Lager et al. 1987; Prencipe 1994; Almandine: Armbruster et al. 1992; Geiger et al. 1992; Andradite: |  | | Journal (article/letter/editorial) | | Splitting Linewidth F (~ (mm/s) (mm/s) (ram/s) Almandine ~ 300 1.25 3.60 d Andradite c 300 80 1...3.73 a d Pyrope-Almandine 20% Fe 2+~ 300 1.30 3.56 0.41 f Pyrope-Almandine 69% Fe 2+~ 300 1...30 3.53 0.40 f Almandine g 300 77 1.29 1.50 3.49 3.69 0.33 h 0.83 h Almandine ~ 300 77 1.20 1...parameters through the following relationship (Ingalls, 1964): AE=(2/7) e2 Q(1-R) (r -3) F(Aa, A2, 2...(Lyubutin and Dodokin, 1971) and 2 is about 150 K (Ingalls, 1964). In fact the spin-orbit coupling parameter |  | | Book (volume) | | cut purplish pink elbaite tourmaline (30.89 ct), Maine; round brilliant red-orange spessartine garnet (16...Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal step cut violetish pink...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...Cantlin, Ellis, [D; Jeannette B. Carillo, Gem Center USA, EI Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill O. Murphy |  | | Journal (article/letter/editorial) | | California 94305, USA 2 Rockwell Hanford Operations, P.O. Box 800, Richland, Washington 99352, USA 3 Geology...Stanford University, Stanford, California 94305, USA Abstract. Synchrotron radiation has been used to...the crystal structure surrounding the Fe 3+ ion (Ingalls 1964). Since the magnitude of p_ I- this gradient...absorption intensity. The Fel_xO and uppermost almandine spectra are after Calas et al. (1980) Fe 2 + K...Fayalite b Fayalite ° Ferrosilite Osumulite Almandine Almandine" Gillespite Hercynite Chromite a Staurolite" |  | STOWELL, H., BULMAN, G., TINKHAM, D., ZULUAGA, C. (2011) Garnet growth during crustal thickening in the Cascades Crystalline Core, Washington, USA. Journal of Metamorphic Geology, 29 (6) 627-647 doi:10.1111/j.1525-1314.2011.00933.x | Journal (article/letter/editorial) | | thickening in the Cascades Crystalline Core, Washington, USA H. STOWELL,1 G. BULMAN,1,2 D. TINKHAM3 AND C. ZULUAGA1...35487-0338 USA (hstowell@geo.ua.edu) 2 CH2M Hill, 800 Fairway Dr., Deerfield Beach, FL, 33441-1830 USA 3 Department...terrane Coast Plutonic Complex Insular terrane CAN USA Map area r ive k zone k oc bl Nason Terrane...Windy Pass thrust juxtaposes the Late Jurassic Ingalls Ophiolite Complex (Miller, 1985) and Chiwaukum...number of Al ions on the octahedral site; Alm, almandine; Prp, pyrope; Sps, spessartine; Grs, grossular; |  | Narygina, Olga V., Kantor, I. Yu., McCammon, C. A., Dubrovinsky, L. S. (2010) Electronic state of Fe2+ in (Mg,Fe)(Si,Al)O3 perovskite and (Mg,Fe)SiO3 majorite at pressures up to 81 GPa and temperatures up to 800 K. Physics and Chemistry of Minerals, 37 (6) 407-415 doi:10.1007/s00269-009-0342-y | Journal (article/letter/editorial) | | CARS, University of Chicago, Chicago, IL 60437, USA dominating Mössbauer component associated with...QS value is temperature and pressure dependent (Ingalls 1964). In the case of [8]Fe2? in majorite, the... as was shown by Huggins (1975). Based on the Ingalls model (1964), Huggins (1975) derived the following...iron in silicate garnets. Am Mineral 60:316–319 Ingalls R (1964) Electric-field gradient tensor in ferrous... Wagner FE (1987) The mössbauer spectrum of almandine. Phys Chem Minerals 14:264–269 Ross NL, Hazen |  | | Report (chapter) | | examples from the Cordilleran Coast Plutonic Complex, USA H. H. S T O W E L L 1 & D. K. T I N K H A M 2 1Department...Sciences, University of Alabama, Tuscaloosa, Alabama, USA (e-mail." hstowell @wgs. geo. ua. edu) 2Department...was considered to exhibit non-ideality in the almandine-pyrope and grossular-pyrope binaries only, and...mole fraction of up to 0.080 spessartine, 0.075 almandine, and zoning in pyrope and grossular. Plagioclase...Hooper 1990; Brew et al. 1992). In the south, the Ingalls ophiolite was thrust over the Chiwaukum Schist |  | | Journal (article/letter/editorial) | | Crystal Field Stabilization Energies of Almandine-Pyrope and Almandine-Spessartine Garnets Determined by FTIR...transitions located between 4000 and 9000 cm 1 in almandine-pyrope and almandinespessartine garnets solid...orbitals. The CFSE show a slight increase along the almandine-spessartine binary from 3730 to 3810 cm-1 and...larger increase from 3730 to 3970 cm ~ for the almandine-pyrope binary. Dodecahedral Fe2+-site distortion...3.5 times larger in magnitude along the join almandine-pyrope, where an interaction parameter of W - |  | Stowell, H., Zuluaga, C., Boyle, A., Bulman, G. (2011) Garnet sector and oscillatory zoning linked with changes in crystal morphology during rapid growth, North Cascades, Washington. American Mineralogist, 96 (8) 1354-1362 doi:10.2138/am.2011.3759 | Journal (article/letter/editorial) | | compositional sector and oscillatory concentric zoning in almandine-rich garnet from the Chiwaukum Schist in the North...Stuart batholith Insular terrane Map area CAN USA Juan de Fuca ridge N Sierra Nevada Batholith Ch...iwa uk 5 km um Windy Pass thrust Sc his t Ingalls Complex 121°00' 120°45' Figure 1. Generalized...ZONING, AND CRYSTAL MORPHOLOGY Mole fraction Almandine {211} {110} 0.65 Low-Ca sectors 0.10 0.60...Mole fraction Almandine Mole fraction Grossular Pyrope, Spessartine 0.75 Almandine 0.20 0.40 Low-Ca | | | Book (volume) | | cut purplish pink elbaite tourmaline (30.89 et), Maine; round brilliant red-orange spessartine garnet (...Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...Cantlin, Ellis, ID; Jeannette B. Carillo, Gen1 Center USA, El Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill 0. Murphy... 15 Figure 6. Dallas Gem Mine in San Benito County, CA........................................... |  | | Report (volume) | | progressive chemical variation of samples from the Ingalls Peak area, ~ashington_ ____ __ _ 9. Field sketch...Chemical and spectrographic analyses of samples from Ingalls Peak and Twin Sisters area, Washington (loc. 11...of adjacent country rock to assemblages of the almandine amphibolite facies." Thayer and Brown (1964) described...Creek _____________ Baldy Mountain __________ Ingalls Peak ______________ Twin Sisters ______________...depletion during alteration and magnesium is erratic. INGALLS PEAK, WASH. (loc. 11) Smith (1904) described a |  | | Book (edition) | | from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...Pocket in pegmatite, Newry, Maine 34. Loading pocket contents, Newry, Maine 35. Large tourmaline crystal...of tourmaline crystal forms 38. Map of San Diego County, California gem sources 3 9. Stewart Lithia· and...View of Clear Creek, San Benito County, California 55. Monterey County jade-producing shoreline, California...California 56. Rhodonite quarry, Salt Spring Island, Vancouver Island 57. Drawing of garnet crystal forms |  | | Journal (article/letter/editorial) | | series (octahedral with various distortions), and almandine garnet (distorted eightfold co-ordinate antiprism)...MTTELLIXR(1960); scoow Garnet group, pyrope-almandine series (Mg, Fe)&ls(SiO,)s Mason C USNM 104490... Two of the garnets, belonging to the pyrope-almandine series (Mg, Fe),Al,(SiO,),, had 20-O and 69.3...quadrupole splitting for the garnets of the pyrope-almandine series appear to be the largest yet reported for...343 A (GIBBSand SMITE,1965). The parameters for almandine and hedenbergite are the first to be reported |  | | Report (volume) | | Louisiana........Prof. Gilbert D. Harris, Baton Rouge. Maine............Mr. C. Vey Holman, Bangor. Maryland....See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson...Jefferson County, at Elyton; Lee County, at Chewacla lime works; St. Clair County, at Gfeensport; Shelby |  | | Journal (article/letter/editorial) | | temperature. The corresponding reactions are almandine þ 3 diopside ¼ pyrope þ 3 hedenbergite, ð2Þ ...component reactions possible between the endmembers almandine (alm), pyrope (py), grossular (gro), diopside...ð4Þ (Fig. 3), or with muscovite, grossular, almandine and hedenbergite components of adjoining solid...(Williams et al. 1971). The crystal field model of Ingalls (1964) predicts that the relatively undistorted...to mixtures. Contrib Mineral Petrol 105:446–453 Ingalls R (1964) Electric-field gradient tensor in ferrous |  | | Journal (article/letter/editorial) | | diopside and forsterite in calcite-dolomite marbles, almandine-hornblende-andesine in metabasaltic rocks, and...251 Frost, B. R. : Contact metamorphism of the Ingalls Complex at Paddy-Go-Easy-Pass, Central Cascades...University of Washington Seattle, Washington 98195 USA J. M. t~ice, V. Trommsdorff Institnt fflr Kristallographie |  | | Journal (article/letter/editorial) | | electrons and the rest of the crystal lattice (Ingalls 1964). When distortion from cubic symmetry is small...contribution is relatively insensitive to temperature (Ingalls 1964). The quadrupole splitting for Fe3+ in the...X-ray diffraction study. Am Mineral 72:357±360 Ingalls R (1964) Electric-field gradient tensor in ferrous...study of Fe(2+)3Al2Si3O12-Fe(2+)3Fe(3+)2Si3O12, (almandine-ªskiagiteº) and Ca3Fe(3+)2Si3O12-Fe(2+)3Fe(3+)2Si3O12 |  | | Journal (article/letter/editorial) | | Massachusetts Institute of Technology, Cambridge, MA 02139, USA e-mail: nchat@mit.edu K. Nicolaysen Department of...College, 345 Boyer Avenue, Walla Walla, WA 99362, USA e-mail: nicolakp@whitman.edu method are remarkably...Massachusetts Institute of Technology (MIT), Cambridge, USA, and on a Cameca SX-50 electron microprobe at the...the University of Massachusetts, Amherst, USA. The silicate phases were analyzed at MIT using an accelerating...21 100.5 18.50 65.53 Rim 1 Ab Albite, Alm Almandine, Amp Amphibole, An Anorthite, And Andesine, Bt |  | Milani, Sula, Angel, Ross J., Scandolo, Lorenzo, Mazzucchelli, Mattia L., Ballaran, Tiziana Boffa, Klemme, Stephan, Domeneghetti, Maria C., Miletich, Ronald, Scheidl, Katharina S., Derzsi, Mariana, Tokár, Kamil, Prencipe, Mauro, Alvaro, Matteo, Nestola, Fabrizio (2017) Thermo-elastic behavior of grossular garnet at high pressures and temperatures. American Mineralogist, 102 (4) 851-859 doi:10.2138/am-2017-5855 | Journal (article/letter/editorial) | | such as the Murnaghan or Tait EoS (Freund and Ingalls 1989; Holland and Powell 2011; Angel et al. 2014)...Single-crystal X-ray structure study of synthetic pyrope almandine garnets at 100 and 293 K. American Mineralogist...29–44. American Geophysical Union. Freund, J., and Ingalls, R. (1989) Inverted isothermal equations of state...neutron scattering and lattice-dynamics studies of almandine Fe3Al2Si3O12. Physics Review B, 61, 3983–3988...hydrostatic compression of synthetic pyrope, almandine, spessartine, grossular and andradite garnets |
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