 | Li, Jiankang, Liu, Congyu, Liu, Xiang, Li, Peng, Huang, Zhibiao, Zhou, Fangchun (2019) Tantalum and niobium mineralization from F- and Cl-rich fluid in the lepidolite-rich pegmatite from the Renli deposit in northern Hunan, China: Constraints of fluid inclusions and lepidolite crystallization experiments. Ore Geology Reviews, 115. 103187 doi:10.1016/j.oregeorev.2019.103187 | Journal (article/letter/editorial) | | from F- and Cl-rich Fluid in the Lepidolite-rich Pegmatite from the Renli Deposit in Northern Hunan, China:...from F- and Cl-rich Fluid in the Lepidolite-rich Pegmatite from the Renli Deposit in Northern Hunan, China:...from F- and Cl-rich Fluid in the Lepidolite-rich Pegmatite from the Renli Deposit in Northern Hunan, China:...Li, Li9968@126.com Abstract Lepidolite-type pegmatite is usually produces tantalum–niobium (Ta–Nb) ...controversial. The pegmatite dike No. 5 is a lepidolite-rich dike in the Ta–Nb pegmatite deposit in Renli |  | | Journal (article/letter/editorial) | | themically halfway between polylithionite and trilithionite, and exhibits the 2M, structure which so far...predominates over 1M. The composition i~ close to trilithionite. The optic axial plane is parallel te (010)...study was to examine the contamination of late pegmatite stages by components of the ultrabasic wall rock...Czechoslovahia, approximately 45 km WSW of Brno. Both pegmatite~, named after the adjacent villages and located...Biskupice I pegmatite (B-41) and t~'o megascopic varieties of lepidolite from the Radkovice pegmatite (R1-43 |  | | Journal (article/letter/editorial) | | toummIlne as indicators of pegmatite internal evolution: Bob Ingersoll pegmatite, Black Hills, South Dakota*...dominant 2MI component, occur in inner partsof the pegmatite,including the core and areasof contact between...micro&e by lithian mica duringdifhxentiationof the pegmatite,and possiblyrapid,disequilibriumcrystallization...crystalsreikxts disequilibriumconditions as cry&lhne pegmatite reactedwith compositionallyevolving fluids Lithianmica...contributedto the exomorphic halo surroundingthe Pegmatite. INTRODUCI’ION IN RECENT YEARS,much has been learned |  | | Journal (article/letter/editorial) | | shallow-intrusive textures are composed almost entirely of quartz and of topaz (Johannson, 1932); ii) late-stage...rhyolites ro and granites, and greisen-, pegmatite-, quartz-type veins; and iii) cavities formed by the...Phenocrysts of topaz, K-feldspar and mica in a quartz-feldspar-topaz groundmass, within ongonite from...2014); (C) Topaz at the Honeycomb Hills rhyolite, USA, as a primary phenocryst phase including biotite...biotite (Congdon and Nash, 1991); (D) Phenocrysts of quartz, alkali feldspar, and topaz in the rhyolite dikes |  | | Journal (article/letter/editorial) | | (Honeycomb Hills) from the Basin and Range Province, SW USA (Nash, 1993). For these micas, the functional relationship...Mn2+]6[phlogopite , annite] ~[Li+]3 + [A13+]3 [trilithionite], [Li+] + [A13+]2 + [Fe2+,Mg2+,Mn2+]2 + [~[zinnwaldite]...normal group, substitutions involving phlogopite-trilithionite and zinnwaldite- Li20 = [50.3/(6.5 + MgO)]...Wolkenstein pegmatite 1004 Granulitgebirge Wolkenstein pegmatite 1022 Mocambique Alto Ligonha pegmatite 1001...e s ' ) formed at the exocontact of the Tanco pegmatite (e.g. Icenhower and London, 1995). 64 Li AND |  | Černý, P., Chapman, R., Staně, J., Nová, M., Baadsgaard, H., Rieder, M., Kavalová, M., Ottolini, L. (1995) Geochemical and structural evolution of micas in the Rožná and Dobrá Voda pegmatites, Czech Republic. Mineralogy and Petrology, 55 (1) 177-201 doi:10.1007/bf01162587 | Journal (article/letter/editorial) | | lepidolite might be possibly due to mixing of residual pegmatite fluids with metamorphic pore solutions. * Permanent...surprising to realize that micas from the Ro;mfi pegmatite in western Moravia, the type locality of lepidolite...lepidolite in particular, is quite remarkable in this pegmatite. Most of the meager information on the Ro~nfi...to incorporate the micas from the Dobr~ Voda pegmatite, another classic locality in western Moravia....Rbl) Qtz (Ab,Toz,Zrn) Qtz (Ab,Rbl) Rbl (Rbl) Pegmatite unit* type of mica (iv) graphic (vi) Ab outer |  | | Report (issue) | | 2]- 1 - 00 K1H:ob00) (A) suggests the name "trilithionite" as more appropriate for this hypothetical end...CONTRIBUTIONS TO GENERAL GEOLOGY lithionite and trilithionite, raises the problem of structural continuity...occupancy of the octahedral layer by Al(+Fe+3), trilithionite is represented by a point midway along the left...points fall on the outside boundary, as do trilithionite and polylithionite. However, all fall between...boundary Lepidolites//; o >o x T , *,_ o x * Trilithionite*ovx 0 x /x xx Mixed forms//£o x x Lithian |  | | Journal (article/letter/editorial) | | with lesser amounts in hornblende, muscovite, quartz and accessories. However, accessory minerals --...delays the onset of crystallization, and promotes quartz, topaz and feldspars above biotite in the order...the International Geological Correlation Progre mine, Metallization Associated with Acid Magmas. • 2...alkaline plutonic series (F in wt.%) A 1 Syenite Quartz syenite Alkali granite Alkali apogranite B 2 ...massifs containing 0.156--0.540% F developed quartz and quartz--fluorite greisens in association with apical |  | | Journal (article/letter/editorial) | | + Fe 3+ + Cr 3+ (muscovite) and Li/R 3+;vI (trilithionite). In practice, this requires using four 2dimensional...phengite(z) (MgFe)AI3 ' ~ " LiFetl 5AI2_~ ; 9 trilithionite ' / LiaAI3 = "~1"~[~ Li muscovite I / u,5~35...most Li-rich micas including polylithionite, trilithionite (= paucilithionite), and cryophyllite plot exclusively...Noronha, 1996). Note that the micas designated as trilithionite (= lepidolite) by Charoy et al. (1995) have...Marquez, N. (1995) Iron-rich komerupine in sheared pegmatite from the Wanni Complex, at Homagama, Sri Lanka |  | | Book | | known to 1umankind since prehistoric times such as quartz 1nd gold, but also ~minerals first described quite...magmatic or hydrothermal origins of elbaite in the pegmatite cavities; the metamorphic or hydrothermal origins...copper are in the Keweenaw Peninsular, Lake Superior, USA, the largest being I 5 x 7 x 3m (approx. 50 x 23...140mm (5½ in) long occurred in the Ray mine and in Bisbee, Arizona, USA. Very fine spinel-law twins up to...Superior, Michigan, USA. Wires, up to 100 mm (4 in) long, come also from the San Genaro Mine in Huancavelica |  | | Book | | known to humankind since prehistoric times such as quartz and gold, but also minerals first described quite...magmatic or hydrothermal origins of elbaite in the pegmatite cavities; the mctamorphic or hydrothermal origins...copper are in the Keweenaw Peninsular. Lake Superior, USA, the largest being 15 x 7 x 3m (approx. 50 x 23 x...(5'A in) long occurred in the Ray mine and in Bisbce, Arizona, USA. Very fine spincl-law twins up to...Superior, Michigan, USA. Wires, up to 100 mm (4 in) long, come also from the San Gcnaro Mine in Huancavclica |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...end-members annitephlogopite), lepidolite (trilithionite-polylithionite), olivine (forsterite-fayalite)...very old origin, often without lrnown source. e.g. quartz or cinnabar. Current practice most often names...polished mineral surface, expressed in clase. 7 - quartz. 8 - topaz, 9 - corundum, 10 - dia- percentage...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept |  | | Journal (issue) | | in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...paleoclimate controls of lithium-cesium-tantalum (LCT) pegmatite genesis, exhumation, and preservation……………………...rediscovered pegmatite in the Stettin Complex, Wausau Syenite Compley, Marathon County, Wisconsin, USA……………………………………………...REIMER, W. Mineralogical study of the Gonçalo Li-pegmatite deposit, Portugal……………………………………..23 FALSTER,...luorapatite-quartz assemblage in the Emmons pegmatite, Greenwood, Oxford Co., Maine, USA: implication |  | | Journal (article/letter/editorial) | | phengite eastonite lithian muscomuscovite vite trilithionite mgli -2.00 -2.00 (A) -1.00 0.00 1.00 ...occurs in orthopyroxene-hornblende diorite and quartz diorite rocks with an accessory biotite and actinolite...Fe/(Fe+Mg) ratio at 2070 bars. 5.00 Water-saturated quartz diorite solidi f H2 O, (kb) 4.00 Water-saturated...plot of watersaturated solidi of granodiorite and quartz diorite diagram. clear overlap, micas from potassic...microthermometric studies of potassic and phyllic stage quartz veins that taken from Selby and Nesbitt (2000) |  | | Book | | occurs at Trimouns as colorless, pink and pale brown, translucent to transparent, tabular microcrystals...AFRICA widely in Litchfield County, where good crystals were taken from quartz veins in a variety of metamorphic...Litchfield, where a mass of white quartz on a ridge had once been mined for quartz, and large ilmenite masses...ilmenite crystals to 7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment,...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | B. Hoover: U.S.G.S., Federal Center, Lakewood, Colorado. John M. Hughes: Dept. of Geology, Miami University...Louise Reif: U. S. G. S., Federal Center, Lakewood, Colorado. Charles B. Sclar: Dept. of Earth Sciences, Lehigh...Especially when the mineral species is common, such as quartz (75.1.3.1), many varieties (jasper, onyx) are known...chemistry and structure are identical to those of quartz. 5D. Polytypes Materials whose basic structural...only with fibrous minerals Columbite, wolframite Quartz Opal, some yellow varieties of sphalerite Nepheline |  | | Book | | much biased by science with too little sense of mine for beauty) will keep his memory and work, alive...constituents the three rock-forming minerals feldspar, quartz and mica, which in places develop mega-crystals...material extracted from pegmatites is feldspar, quartz and mica, and only a tiny fraction of pegmatites...so as to render mining of these rare-element pegmatites feasible. The traditional mining of pegmatitic...aplitic rocks. In light of more than 1000 years of mining and an intensive study of the deeper parts of the |
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Brown Derby Mine, Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA