 | | Report (issue) | | sin ¯ ]. ¯ = n.d. X-ray Powder Pattern: Qingtian, China; * = cookeite overlaps. 4.704 (100*), 3.343...012 11.296 Total 99.951 Chemistry: (1) Qingtian, China; by electron microprobe, Li by AA, H2 O by...cookeite and pyrophyllite. Occurrence: Within corundum, in a hydrothermal pyrophyllite deposit in rhyolite...rhyolite. Association: Corundum, diaspore, chlorite, illite, halloysite, svanbergite, zeolites, hematite...hematite. Distribution: From Qingtian, Chekiang Province, China. Name: From the Chinese luni, for the chlorite |  | | Journal (article/letter/editorial) | | information: http://www.tandfonline.com/loi/tigr20 PYROPHYLLITE DEPOSITS a a V. V. Zaykov , V. N. Udachin... V. N. Udachin & I. V. Sinyakovskaya (1988) PYROPHYLLITE DEPOSITS, International Geology Review, 30:1...http://www.tandfonline.com/page/termsand-conditions PYROPHYLLITE DEPOSITS Downloaded by [University of Illinois...Sciences, Miass. They summarize and classify pyrophyllite deposits of the world and suggest possible sources...no pyrophyl lite is currently being mined. Pyrophyllite is a comparatively scarce min eral resource |  | | Journal (article/letter/editorial) | | vol. 55, no. 4, 405–418, 2005 Review Types of Pyrophyllite Deposits in Foldbelts Irina SINYAKOVSKAYA, Victor... 2004; accepted on August 2, 2005 Abstract: Pyrophyllite deposits can be divided into five types on the...metamorphic strata. The fifth type comprises pyrophyllite occurrences in weathering crusts on metamorphic...formation conditions and distribution of raw pyrophyllite deposits were influenced by the geodynamic situations...composition of hydrothermal solutions. Keywords: pyrophyllite deposit, hydrothermal, foldbelts We adopt the scheme |  | | Journal (article/letter/editorial) | | Genesis of the Baiyun Pyrophyllite Deposit in the central Taihang Mountain, China: Implications for Gold...Genesis of the Baiyun Pyrophyllite Deposit in the central Taihang Mountain, China: Implications for Gold... Genesis of the Baiyun Pyrophyllite Deposit in the central Taihang Mountain, China: Implications for Gold...Sciences and Resources, China University of Geosciences, Beijing 100083, China *Corresponding author...nightyzhf@cugb.edu.cn (Zhang H.F.) Abstract Genesis of pyrophyllite alteration can provide important clues for ore |  | TAKAGI, Tetsuichi, KOH, Sang-Mo, KIM, Moon-Young, NAITO, Kazuki, SUDO, Sadahisa (2000) Geology and Hydrothermal Alteration of the Milyang Pyrophyllite Deposit, Southeast Korea. Resource Geology, 50 (4) 243-256 doi:10.1111/j.1751-3928.2000.tb00073.x | Journal (article/letter/editorial) | | and Hydrothermal Alteration of the Milyang Pyrophyllite Deposit, Southeast Korea Tetsuichi TAKAGI, Sang-Mo...and Sadahisa SUDO Abstract: The Milyang pyrophyllite deposit, which is embedded in the Late Cretaceous...Kyongsang basin, southeast Korea. Host rocks of the deposit are porphyritic andesite lava and minor andesitic...peripheral parts of the zone. The Milyang pyrophyllite deposit forms a part of the advanced argillic alteration...alteration zone. The Milyang pyrophyllite deposit is subdivided into the following four zones based on |  | Li, Yu-Juan, Zhu, Lü-Yun, Xu, Wen, Meng, Wei, Lin, Min, Yang, Zhong, Chen, Run-Sheng (2022) Stratigraphic Section and Geochronological Studies of the Shoushan Basin, Fujian Province, South China, and Its Implications for the Mineralization of Shoushan Stone. Minerals, 12 (12) 1542 doi:10.3390/min12121542 | Journal (article/letter/editorial) | | Studies of the Shoushan Basin, Fujian Province, South China, and Its Implications for the Mineralization of...Studies of the Shoushan Basin, Fujian Province, South China, and Its Implications for the Mineralization of...350108, China Fujian Provincial Institute of Geological Survey and Research, Fuzhou 350013, China Correspondence:...one of the most famous craft-carving stones in China, Shoushan stone commonly consists of clay minerals...minerals, including the kaolinite, pyrophyllite, or illite group, which is the product of hydrothermal alteration |  | | Journal (article/letter/editorial) | | (2009) DOI : 10.3749/canmin.47.2.441 PYROPHYLLITE – ZUNYITE – DIASPORE MINERALIZATION AT CHOUICHIAT, ANTI-ATLAS...1) a central quartz–pyrophyllite zone, surrounded on both sides by 2) a pyrophyllite–quartz -rich proximal...amounts of diaspore, kaolinite and zunyite, and spots of hematite, and 3) a distal pyrophyllite zone with...with quartz–pyrophyllite in smaller amounts, common hematite and diaspore. The zoning expresses the gradual...hydrolysis of white mica in the rhyodacite to produce pyrophyllite: 2KAl2AlSi3O10(OH)2 + 6 SiO2 + 2H+ ! 3Al2Si4O10 |  | | Journal (article/letter/editorial) | | 450-453 THE ORIGIN OF DIASPORE AND PYROPHYLLITE IN THE FOXTRAP PYROPHYLLITE DEPOSIT, AVALON PENINSULA,...interpretation for the origin of diasporeand pyrophyllite in the Foxtrapdeposit,consistentwith the texturesand...Groupand Mode of Occurrenceof Pyrophylliteand Diaspore consistpredominantlyof a northerlytrendingbelt...kaolinite is presentas a minor constituent only. The pyrophyllite-rich zonesalsocontain irregular patchesof c...fled and partly sercitizedwithin i to 2 km of the diaspore typically occurs as rosettes intergrown contact |  | | Report (issue) | | Cross Section of Typical Massive I^rrophyllite Deposit o 10 Origin and Mineralization 12 Distribution...these materials, the aluminum silicate minerals, pyrophyllite and kyanite, hatre long been known to occur...occur with rocks of the Tolcanic-Slate series, pyrophyllite having been produced commercially for nearly...massive topaz, ani diaspore have been identified in associaticn with pyrophyllite at several localities...kyanite, massive topaz, andalusite, and diaspore with pyrophyllite deposits in North Carolina. Location |  | | Journal (article/letter/editorial) | | 7 6 5 - 7 2 Cookeite and diaspore in the Back Creek pyrophyllite deposit near Pambula, New South Wales...sl)(A10.74Sia.~)Oio(OH)s, in the Back Creek pyrophyllite deposit near Pambula is described. The mineral is...narrow zone near the centre of the deposit and although diaspore is also present in this zone the two...cookeite. THERE are three known deposits of pyrophyllite in New South Wales (Loughnan, 196o) of which...origin of the deposit was lacking. However, renewed interest in the use of pyrophyllite, particularly |  | | Report (volume) | | the Carolina slate belt The Brewer porphyry gold deposit ---------------------------------------------------------General...porphyry gold system High-alumina deposits in Moore County -----------------------------------------------Other...Hydrothermal alteration at the Brewer mine, Chesterfield County, South Carolina ------------------------------------------6...Hydrothermal alteration atPilot Mountain, Randolph County, North Carolina ------------------------------... 3. 4. 5. Metals associated with selected pyrophyllite deposits -------------Rapid rock analysis of |  | | Journal (article/letter/editorial) | | PETROLOGY OF THE SYSTEM A1,O3-SiO'-H'OIN SOME PYROPHYLLITE DEPOSITS OF NORTH CAROLINA E-.ru Znw,* Department...ABsrRAcr 'I'he mineral assemblages from seven pyrophyllite deposits in the Volcanic Slate belt of the North...following are 3-phase quartz, pyrophyllite, andalusite, kyanite, kaolinite, and diaspore. assemblagesbelonging...quartz-kaolinite-pyrophyllite; pyrophylliteandalusite-quartz; and kaolinite-diaspore-pyrophyllite. All the observed...kaolinite assemblageat Hillsboro but of pyrophyllite diaspore at Staley suggest differences in physical |  | | Report (issue) | | the Carolina slate belt The Brewer porphyry gold deposit General geology of the Pilot Mountain — Fox Mountain...porphyry gold system High—alumina deposits in Moore County Other deposits in North Carolina Origin and significance...Chesterfield County, South Carolina Figure 6.--Hydrothermal alteration at Pilot Mountain, Randolph County North...tables Table 1.--Metals associated with selected pyrophyllite deposits— Table 2.--Rapid rock analysis of topaz—rich...or all of the minerals kaolinite, sericite, pyrophyllite, and rutile, and locally abundant disseminated |  | KOH, Sang-Mo, TAKAGI, Tetsuichi, KIM, Moon-Young, NAITO, Kazuki, HONG, Sei-Sun, SUDO, Sadahisa (2000) Geological and Geochemical Characteristics of the Hydrothermal Clay Alteration in South Korea. Resource Geology, 50 (4) 229-242 doi:10.1111/j.1751-3928.2000.tb00072.x | Journal (article/letter/editorial) | | Abstract: Hydrothermally altered areas forming pyrophyllite-kaolin-sericite-alunite deposits are distributed...are closely related to cauldrons. Paleozoic clay deposit occurs in the contact zone between Precambrian...deposits are alunite, kaolin, quartz, pyrophyllite and diaspore which were formed by acidic solution....Kyongsang clay deposits are sericite, quartz and pyrophyllite which were formed by weak acid and neutral solution...39.7 to 79.4 Ma, respectively. The Daehyun clay deposit in Ponghwa area of Kyongsang province shows the |  | | Journal (article/letter/editorial) | | areaconsistsof quartz,andalusite,topaz,sericite,pyrophyllite, and kaolinite. The followingparagenesis hasbeenrecognized...regionalfoliation of the schistand quartzite;(4) sericite, pyrophyllite,and quartz formed fracturefillings in the a...possiblyAlzOgbehavedasmobilecomponents during the formation of pyrophyllite. Recentexperimentaland theoreticalwork placesa...rock for the pyrophyllite.A comparisonof the pyrophyllite occurrencesin the northern and southern Appalachians...curring as replacement alongwith pyrophyllite,minor topaz,and diaspore. Zen (1961)conducteda petrologicsurveyof |  | | Report (issue) | | STEPHEN G. CONRAD, State Geologist BULLETIN 80 Pyrophyllite Deposits in North Carolina by Jasper L. Stuckey...STEPHEN G. CONRAD, State Geologist BULLETIN 80 Pyrophyllite Deposits in North Carolina by Jasper L. Stuckey...manuscript for publication as Bulletin 80, "Pyrophyllite Deposits in North Carolina," by Jasper L. Stuckey...the occurrence, distribution and geology of pyrophyllite in North Carolina and should prove to be of...Structural features Age of the rocks Geology of the pyrophyllite deposits 4 4 5 6 6 7 7 7 8 9 Introduction |  | | Journal (article/letter/editorial) | | of the important pyrophyllite-diasporedepositsin Japan. The area near the ore deposit consists of fine...these rocks are coveredby a lava flow. The ore deposit occursalong the boundary zone betweenthe porphyrite...The ore bodies consist of diaspore, cray minerals, quartz and pyrite. Diaspore occurs as compact or powdery...cemented by pyrophyllite. About eighty specimenswere coilectedin the area inciuding the ore deposit, and the...other locaiities. The confirmedminerals are diaspore,pyrophyllite, quartz, sericite, kaoiinite, halloysite |  | | Journal (article/letter/editorial) | | Holdaway (1973) best explains occurrencesof pyrophyllite-diaspore and kaolinitequartz-AlrSiOr. Introduction...Minerals whosecompositionslie within the system pyrophyllite by Robie (personal communication) AlrO3-SiOr-HrO...within this system. many assemblagescontaining pyrophyllite and kaolinite from greenschistfacies rocks in...THERMODYNAMIC DATA FOR DIASPORE chlorite was easily removed sinceit coatedthe diaspore vein. The rutile appearedto...calorimeterwhen it was run empty and when loadedwith diaspore. Heat capacitiesfrom 325 to 520 K were measured |  | | Journal (article/letter/editorial) | | lawsonite, carpholite, chloritoid, pyrophyllite, quartz or diaspore (Goff6 1977, 1979, 1980, 1982, 1984;...with pyrophyllite and corundum (Vrublevskaja et al. 1975), or with kyanite, margarite, diaspore, chloritoid...Milton 1964; Stone and Milton 1976), or pyrophyllite and diaspore (Loughnan and Steggles 1976), or quartz...Quartz-Pyrophylhte Kaolinie A~aalusite C~undurn SUlimanite Diaspore Kyanite Fig. 1. Ternary plot of the system Li... LiA14(Si3A1)O1o(OH)8 ; corundum (co), A1203; diaspore (dias), A10(OH); eucryptite (euc), LiAI(SiO4); |  | | Journal (article/letter/editorial) | | hydrothermal dumortierite from an Al-rich clay deposit, southeastern Korea C. O. CHOO* AND Y. KIM Department...the altered volcanic rocks of the Milyang clay deposit, southeastern Korea. Textural evidence shows that...that dumortierite is associated with pyrophyllite, suggesting that the silica activity increased with...common occurrence of Al-rich minerals in the clay deposit. The structural formula of dumortierite is recalculated...defined site. K EY WORDS : dumortierite, clay deposit, boron, trigonal group, MAS NMR, Korea. Introduction |  | | Journal (article/letter/editorial) | | must be fulfilled for the genesis of a bauxite deposit ŽBardossy and Aleva, 1990.: Ž1. alternation of...cld for chloritoid, cook for cookeite, dsp for diaspore; kln for kaolinite; ky for kyanite; mrg for margarite;...margarite; ms for muscovite, prl for pyrophyllite, qtz for quartz. 5.1. Cookeite-rich metabauxite At the...chlorite, Ti-oxide, hematite and diaspore. Muscovite, pyrophyllite and margarite intergrown in variable...intergrown in variable combinations with muscovite, pyrophyllite and margarite ŽFig. 3e.; Ž3. in cavities associated |  | | Report (issue) | | (Tobe, Japan); quartz, ammonium-rich mica, pyrophyllite, diaspore, kaolinite, corundum, andalusite (Horo...Ohgidani pottery stone deposit, Tobe, Ehime Prefecture, and in the Horo pyrophyllite deposit, Toyosaka, Hiroshima |  | | Journal (article/letter/editorial) | | X-ray and chemical data of some specimens of pyrophyllite from Japan were discussed. The k=3n reflections...found in association with a certain specimen of pyrophyllite were discussed. The clay mineral agrees with...regularly interstratified pyrophyllite-montmo rillonite. Introduction Many pyrophyllite deposits have been...dickite and kaolinite, high aluminous minerals as diaspore and corundum. Most of these deposits have been...Research held in H. KODAMA 237 (c) the Yoji deposit, Gumma Prefecture ; specimen (Y-1). All of these |  | | Journal (article/letter/editorial) | | mercurian tetrahedrite from the Chiprovtsi ore deposit, western Stara-Planina mtns., Bulgaria, 233 ATKtN...Creek, Pambula, New South Wales, cookcite, diaspore, pyrophyllite, 765 BAILEY (D. K.) and MACDONALD(R.):...chromite, chlorite, peridotite, 695 Chiprovtsi ore deposit, western Stara Planina Mtns., Bulgaria, argentian...Wales, anal., X-ray, 765 Cookstove Mtn., El Paso County, Colorado, genthelvite, danalite, 627 Coordination...481 DE SOUZA(J. V.), see BRINDLEY(G. W.), I41 Diaspore, New South Wales, 765 Diopside, Jagersfontein |  | Kerrich, R., Fyfe, W. S., Barnett, R. L., Blair, B. B., Willmore, L. M. (1987) Corundum, Cr-muscovite rocks at O'Briens, Zimbabwe: the conjunction of hydrothermal desilicification and LIL-element enrichment ? geochemical and isotopic evidence. Contributions to Mineralogy and Petrology, 95 (4) 481-498 doi:10.1007/bf00402207 | Journal (article/letter/editorial) | | r i t e ~ c o r u n d u m ~ c o r u n d u m + diaspore: Cr muscovite variably overprinted both the corundum...(Cr203=0.31-2.65wt%), corundum (0.792.66 wt%), and diaspore are all Cr-rich varieties. The chromian (Cr203...andalusite are relict corundum, f Coarse grained diaspore replacing corundum, in massive corundum rock ...claims. Fourteen samples were obtained across the deposit, representative of the principal lithologies: further...interstitial to corundum; 6 chromerich muscovite with diaspore in cavity replacing corundum; 7 chromian paragonitic |
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