 | | Journal (issue) | | Microminerals from Pegmatites in the Pikes Peak Batholith, Central Colorado Daniel E. Kile Research Associate...Nature & Science 5176 Black Bear Run - Littleton, Colorado 801215 Email: centennial87@comcast.net were sparse...number of localities throughout the Pikes Peak batholith in central Colorado, and many of them provide spectacular...found in pegmatites in the Pikes Peak batholith (PPB) in central Colorado. Although some minerals, such...samples An overview of weathered Pikes Peak Granite within the Pikes Peak batholith, in an area north of |  | Foord, E. E., Černý, P., Jackson, L. L., Sherman, D. M., Eby, R. K. (1995) Mineralogical and geochemical evolution of micas from miarolitic pegmatites of the anorogenic pikes peak batholith, Colorado. Mineralogy and Petrology, 55 (1) 1-26 doi:10.1007/bf01162576 | Journal (article/letter/editorial) | | miarolitic pegmatites of the anorogenic Pikes Peak batholith, Colorado E. E. Foord 1, P. Cern~ z, L. L. Jackson...Mineral Resources, U.S. Geological Survey, Denver, USA Department of Geological Sciences, University of...Denver, USA Branch of Geophysics, U.S. Geological Survey, Denver, USA Topometric, Bedminister, USA With...granitic units of the anorogenic Pikes Peak batholith (1.08-1.02 Ga), Colorado range in composition, and follow...follow in paragenetic sequence, from 1M siderophyllite (N = 1), and 3T or 2M 1 lithian biotite (N = 5) |  | | Report (issue) | | KFe 2+ 2 Al(Al2 Si2 )O10 (F; OH)2 Siderophyllite ° c 2001 Mineral Data Publishing, ver sion 1.2 Crystal... 4.54 0.03 1.68 100.31 99.69 (1) Pikes Peak, Colorado, USA; loss on ignition taken as H2 O: (2) Brooks...Brooks Mountain [sic], Alaska, USA; corresponds to (K 0:93 Na 0:09 Rb 0:01 )§=1:03 Fe2+ 2:02 (Al 0: 47...astrophyllite (Pikes Peak, Colorado, USA). Distribution: On Pikes Peak, El Paso Co., Colorado, and in the...the Brooks Range, Alaska, USA. At Mont Saint-Hilaire, Quebec, Canada. From Altenberg, Saxony, Germany. |  | | Journal (article/letter/editorial) | | December 2012 Flgun 1. View from the summit of Pika Peak looking northwest acro88 the cliff’s of Glen Cove...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...I-billion-year-old formbasin was established in the southeril Pikes Peak Batholith. Adapted by the author from Reed, Bickford...Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks formed...Survey into “Early, Middle, and Late” Eras. In Colorado we because of the subsequent folding and overthrusting |  | | Journal (article/letter/editorial) | | polylithionite preiswerkite shirokshinite shirozulite siderophyllite tainiolite tetra-ferri-annite tetra-ferriphlogopite...end members annite and phlogopite and between siderophyllite and eastonite; dark micas without lithium.... or close to, compositions running between siderophyllite and polylithionite; dark micas containing lithium...(manganoan) varieties are found at the Harding mine, Taos County, New Mexico (Jahns and Ewing 1977). Fuchsite is...Sadisdorf, Germany, would properly be called siderophyllite. For the collector, zinnwaldites are occasionally |  | | Journal (article/letter/editorial) | | Geological Survey, Denver Federal Center, Denver, Colorado 80225, U.S.A. MARCO POPPI§ Dipartimento di Scienze...129 and 147 are from the anorogenic Pikes Peak batholith (Colorado). Sample 129 is from a miarolitic cavity...near Spruce Grove Campground (Tarryall area, Park County). The muscovite is associated with microcline,...pegmatites. Sample 147 is from near Glen Cove (El Paso County) and is associated with microcline and smoky...level of geochemical differentiation of these two Colorado localities is further indicated by the presence |  | | Journal (article/letter/editorial) | | Mineralogy and crystal chemistry of micas from the A-type El Portezuelo Granite and related pegmatites, Catamarca...University, Provo, Utah 84602, USA Corresponding author The A-type El Portezuelo Pluton (Catamarca, NW...granite are intermediate members of the annite–siderophyllite series. From the outer pegmatite zones inwards...leads to compositions intermediate between siderophyllite and polylithionite, up to the composition ...depleted compared with the dioctahedral rims. Micas in El Portezuelo are the most important F-bearing species |  | Brigatti, Maria Franca, Lugli, Cristina, Poppi, Luciano, Foord, Eugene E., Kile, Daniel E. (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) American Mineralogist, 85 (9) 1275-1286 doi:10.2138/am-2000-8-920 | Journal (article/letter/editorial) | | variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) MARIA FRANCA BRIGATTI,*,1 CRISTINA...Italy 2 United States Geological Survey, Denver, Colorado 80225, U.S.A. ABSTRACT The crystal structure...of the Precambrian, anorogenic Pikes Peak batholith, central Colorado, were determined by single-crystal...C12/m(1) (siderophyllite and annite crystals) to C12(1) diperiodic group (lithian siderophyllite and ferroan...≠ M2, M2 = M3 ≠ M1 and M1 ≠ M2 ≠ M3. As the siderophyllite content increases, so do the a, b, and c unit-cell |  | | Journal (article/letter/editorial) | | lpoppi@unimo.it 2United States Geological Survey, Denver, Colorado, 80225, U.S.A., e-mail: dekile@usgs.gov Abstract:...on lithian siderophyllite-3T crystals from granitic pegmatites of the anorogenic Pikes Peak batholith...batholith (Colorado) to characterize the crystal chemistry and relations with trioctahedral lithium-bearing micas...siderophyllitepolylithionite join, closer to the siderophyllite end-member. Single-crystal X-ray refinements...generally small (3.1 4.6°) and decreases with siderophyllite content. As Fe increases, the T1 tetrahedron |  | | Journal (volume) | | it had o nl y been found from one locality in Colorado. However, in the late fi fti es and sixties a...Occurrcnce EI Paso County, Colorado, USA a) unknown b) cavity in pegmatite In the Pikes Peak .los, northern...northern Nigeria c) cavity in pegmatite In the Pikes Peak granite a) albite vein in granite b) microcline...albite + microcline, mica feldspar, quartz -1 siderophyllite) in granite complex greisen body in topaz-bearing...(Galetskiy 1966, Gurvieh cl af. 1962, Gurvieh 1963, Yurk el al. 1971 ). The papers of Gurvieh et al. (1962) and |  | Pini, Stefano, Brigatti, Maria Franca, Affronte, Marco, Malferrari, Daniele, Marcelli, Augusto (2012) Magnetic behavior of trioctahedral micas with different octahedral Fe ordering. Physics and Chemistry of Minerals, 39 (8) 665-674 doi:10.1007/s00269-012-0520-1 | Journal (article/letter/editorial) | | 03Ti0.15) (OH)1.31 Cl0.02] and polylithionite–siderophyllite joints [sample PPB, chemical composition IV(Si3...by the dependency of the temperature giving the peak in the susceptibility curve from the frequency of...Frascati, RM, Italy Keywords Polylithionite Siderophyllite Crystal chemistry XAS Magnetic properties...in trioctahedral micas of the polylithionite–siderophyllite join) and completely ordered in hetero-octahedral...belonging to phlogopite–annite and polylithionite-siderophyllite join, respectively. These samples shows comparable |  | Breiter, Karel, Vaňková, Michaela, Galiová, Michaela Vašinová, Korbelová, Zuzana, Kanický, Viktor (2017) Lithium and trace-element concentrations in trioctahedral micas from granites of different geochemical types measured via laser ablation ICP-MS. Mineralogical Magazine, 81 (1) 15-33 doi:10.1180/minmag.2016.080.137 | Journal (article/letter/editorial) | | Moldanubian basement during and shortly after the thermal peak of the Variscan orogeny (Gerdes et al., 1998). Muscovite...system UP 213 (New Wave Research, Inc., Fremont, CA, USA) operating at 213 nm and 18 LITHIUM AND TRACE ELEMENTS...Agilent 7500ce (Agilent Technologies, Santa Clara, CA, USA). The He carrier gas was mixed with argon make-up...Concentrations were calculated from the background-corrected peak areas. Differences in the ablation rates between...micas that are close to the intersection of the siderophyllite–polylithionite and the annite-trilithionite |  | Cibin, G., Mottana, A., Marcelli, A., Cinque, G., Xu, W., Wu, Z., Brigatti, M. F. (2010) The interlayer structure of trioctahedral lithian micas: An AXANES spectroscopy study at the potassium K-edge. American Mineralogist, 95 (7) 1084-1094 doi:10.2138/am.2010.3344 | Journal (article/letter/editorial) | | compositionally intermediate polylithionite-siderophyllite trioctahedral 1M-micas using polarized synchrotron...the anionic sites. Keywords: Polylithionite, siderophyllite, X-ray absorption pleochroism, XAFS, XANES... while they are bers of the polylithionite-siderophyllite series, and all have K accurate to ±1 eV for...lithian micas we report on here are all from the Pikes Peak batholith fixed, i.e., while keeping the beam...orthogonal to the flake surface. The first test (Colorado, U.S.A.) carefully studied by Foord et al. (1995) |  | | Journal (article/letter/editorial) | | Location map of major topaz deposits. 1. San Diego County, California pegmatites; 2. western U.S. topaz rhyolite...rhyolite belt (includes some pegmatites); 3. Mason County, Texas; 4. topaz rhyolite belt of Mexico; 5. Appalachian...(above). Topaz, Little Three mine, Ramona, San Diego County, California. NMNH specimen 147660. Figure 4 (right)... figure & Topaz, 4.5 em long, Pikes Peak, FJ PSl'lO County, Colorado. NMNH specimen R8772. 18 ROCKS... and micas (with compositions ranging from siderophyllite through zinnwaldite to lepidolite). Accessory |  | Tischendorf, G., Rieder, M., Förster, H.-J., Gottesmann, B., Guidotti, Ch. V. (2004) A new graphical presentation and subdivision of potassium micas. Mineralogical Magazine, 68 (4) 649-667 doi:10.1180/0026461046840210 | Journal (article/letter/editorial) | | Sciences, University of Maine, Orono, ME 04469-5790, USA 2 ABSTR ACT A system based on variation of the...perimeter of the polygon. 2 Mg, and Mg2Fe IMA-siderophyllite (Fe2+2Al) and muscovite (Al2&) plot inside...orthogonally; trioctahedral: phlogopite, biotite, siderophyllite, annite, zinnwaldite, lepidolite and tainiolite;...micas with [Si] <2.5 a.p.f.u. including IMA-siderophyllite, KFe2+ 2 AlAl2Si2O10(OH)2, and IMA-eastonite...cations, i.e. 2+ biotite [Fe2+ 1.5MgAl0.5], siderophyllite [Fe1.75Al0.75 2+ Mg0.25Li0.25], zinnwaldite |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ......................................of Colorado ..................................349 by J. A. Murphy Amazonite from the Pikes Peak batholith...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Journal (article/letter/editorial) | | of Li–Fe micas: intermediate members of the siderophyllite–zinnwaldite–polylithionite and annite–prot...controlling them in micas of the polylithionite–siderophyllite series are completely consistent with the character...These micas are intermediate members of the siderophyllite–zinnwaldite–polylithionite and annite–prot...mostly cluster along a line representing the siderophyllite–zinnwaldite–polylithionite isomorphic series...Zinnwaldite-protolithionite Li,Fe-Phengite Zinnwaldite-siderophyllite Brown same " Grayish blue Brilliant green |  | | Journal (article/letter/editorial) | | phlogopite–annite (Tag15-3) and polylithionite–siderophyllite (no. 47) solid solution series, respectively...Brazil; no. 47 = Lake George ring complex, Pikes Peak, Colorado; Tas22-1 = Tapira, Minas Gerais, Brazil...variety of approaches (see above). Thus, its first peak absorption energy, determined as the minimum in...of the phlogopite–annite and polylithionite–siderophyllite joins. Their crystal structures were recently...the θ = 75° spectrum feature C is still a minor peak (when compared, e.g., to B), but it appears to be |  | | Report (issue) | | Denver, Colorado, USA © 2011 by Lithographie, LLC P.O. Box 11613 • Denver, CO 80211 • USA Phone 1.303...collection Robert Weldon photo Above: Topaz, 5.5 cm tall El Chalten, Santa Cruz, Argentina Scott Rudolph collection...Topaz ALFREDO PETROV & JOHN RAKOVAN 34. Colorful Colorado DAVID W. BUNK 42. Mongolian Topaz: The Gorkhi...and quartz, 5.3 cm tall Sawtooth Mountains, Boise County, Idaho shown under longwave ultraviolet light (left)...fluoresces brightest under longwave light at 350 nm (peak at about 352 nm). Don Newsome collection Jeff Scovil |  | | Report (volume) | | From the Silver King mine, Calico, San Bernardino County, Cal. Specific gravity, 6:28. Analysis by W. H...From .Teocalli Mountain, Brush Creek, Gunnison County, Colo. Specific gravity, 7.400 at 14.5°, corrected...described in Proc. Colorado Sci. Soc., vol. 3, pt. 1, p. 46. From the Rose mine, Grant County, N". Mex. Specific...impurities. From the Missouri mine, Halls Valley, Park County, Colo. Analyses, by Hillebrand, of three different...From the Brobdignag mine, Red Mountain, San Juan County, Colo. Specific gravity, 5.21 at 18°. Analyzed |  | Roda-Robles, Encarnación, Pesquera, Alfonso, Gil-Crespo, Pedro P., Torres-Ruiz, José, De Parseval, Philippe (2006) Mineralogy and geochemistry of micas from the Pinilla de Fermoselle pegmatite (Zamora, Spain) European Journal of Mineralogy, 18 (3) 369-377 doi:10.1127/0935-1221/2006/0018-0369 | Journal (article/letter/editorial) | | A) Mg – Li vs. Fe + Mn + Ti – Al(IV) (Sid = siderophyllite, Zinn = zinnwaldite, Poly = polylithionite...variations in Li- and Fe-rich micas from Pikes Peak Batholith (central Colorado). Am. Mineral., 85, 1275-1286....metamorphic rocks from the Black Hills, South Dakota, USA. Geochim. Cosmochim. Acta, 57, 2487-2505. du Bray...miarolitic pegmatites of the anorogenic Pikes-Peak Batholith, Colorado. Mineral. Petrol., 55, 1-26. Gaupp...(1998): Micas from the Pikes Peak batholith and its cogenetic granitic pegmatites, Colorado: Optical properties |  | | Journal (article/letter/editorial) | | pegmatite, feldspar Ilalland, Derome, Sweden (siderophyllite) pegmatite, Brooks Mtn., Alaska from sands...meroxene calciobiotite annite annite siderophyllite siderophyllite Isle of Waddo Brevig, Norway Mt. Vesuvius... N. J. Italy Rockport, Mass. Rockport, Mass. Pikes Peak, Colo. BrooksMt., Alaska cryophyllite monrepite...Wilberforce Districts-predominantly l-layer forms. Colorado: Guffey District-predominantly l-layer forms....hypabyssal acid dike rocks from the Gufiey District, Colorado, was studied. However, both 1- and 2-layer polymorphs |  | | Journal (article/letter/editorial) | | Limuscovite–polylithionite (Evje-Iveland) and siderophyllite–polylithionite and polylithionite (Tørdal)...F-phlogopite (FKa), and RbNO3 (RbLa). The counting time on peak was 10 s for all elements except Fe, Mn, and Rb...Tørdal generally plots as Mgsiderophyllite and siderophyllite, except the micas from the Heftetjern and Skardsfjell...light brown and black mica plots along the siderophyllite–polylithionite solid solution series. In general...ite join and the Fe-Li micas evolving from siderophyllite towards polylithionite (the two arrows in Fig |  | Brigatti, M. F., Mottana, A., Malferrari, D., Cibin, G. (2007) Crystal structure and chemical composition of Li-, Fe-, and Mn-rich micas. American Mineralogist, 92 (8) 1395-1400 doi:10.2138/am.2007.2497 | Journal (article/letter/editorial) | | 91(OH)0.09; and from Sawtooth Mountains, Boise County, Idaho, U.S.A.: (Si3.11Al0.89)(Al0.91Ti0.02Fe0...cations. Keywords: Masutomilite, polylithionite, siderophyllite, pegmatite, crystal structure, crystal chemistry...(Černý et al. 1985, 1986). At Hirukawa mine (Ena county, Gifu prefecture, Chibu region, Japan, labeled...Þne inclusions. In the Sawtooth Mountains (Boise County, Idaho, U.S.A., labeled “Boise”) trioctahedral...granite batholith that occurs primarily in Elmore County, where the best collecting is found (Menzies and |
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