 | | Journal (issue) | | peninsula in Cornwall. This is the material called serpentinite by the geologist, b u t there are m a n y other...d antigorite, a n d he suggested the n a m e serpentinite for the rock-like forms of serpentine, antigorite...recently divided serpentine into three groups, lizardite, antigorite and chrysotile. Further, there is...Geological Survey stated that the material is lizardite with some brucite. During 1922, G. T . Bowen identified...now be, according to Sinkankas, the Dexter lime quarry of Lincoln Township. A later investigation on this |  | | Journal (article/letter/editorial) | | i28. Amblygonite, France, Maine, New South Wales, Saxony, anal., cell-dimensions, distinction from montebrasite...albite, I56; - - , anal., d2o i, 489. Amoibite, Germany, anal., opt., X-ray, 26. Amos Stream, New Caledonia...quartz from, 815. Bit Meneiga, Egypt, antigorite, lizardite, 394. Bismuthinite, range of Sb content of, 294...Australia, alkali feldspar, anal., d2oi, 489. Bosahan quarry, Falmouth, Cornwall, biotite, 2IO. BOWDEN (P.)...Egypt, 394; New Zealand, 375. Chursdorf, Penig, Saxony, amblygonite, 414. Cinnabar, Yorkshire, xlii. CLARK |  | | Journal (article/letter/editorial) | | tremolite peridotites, tremolite serpentinites and lizarditeâchrysotile serpentinites are found at the contact...southern Britain, Mid-German Crystalline Rise in Germany to the Bohemian Massif in Central Europe (Murphy...BraszowiceâBrzeĆșnica Massif (BBM) is one of the serpentiniteâgabbro massifs belonging to the CentralSudetic...gabbros and serpentinites is exposed in an abandoned quarry on Bukowczyk Hill, where gabbros dip beneath serpentinites...BRA04 BRA05 BRA06 340 00 dew 320 300 magnesite quarry 320 0.0 rivers 300 1.0 300 1.5 km quarries |  | Rizzo, Giovanna, Dichicco, Maria Carmela, Castiñeiras, Pedro, Grassa, Fausto, Laurita, Salvatore, Paternoster, Michele, Sinisi, Rosa, Mongelli, Giovanni (2020) An Integrated Study of the Serpentinite-Hosted Hydrothermal System in the Pollino Massif (Southern Apennines, Italy) Minerals, 10 (2) 127 doi:10.3390/min10020127 | Journal (article/letter/editorial) | | minerals Article An Integrated Study of the Serpentinite-Hosted Hydrothermal System in the Pollino Massif... Abstract: A comprehensive study of the serpentinite and associated veins belonging to the Frido...serpentine group minerals (with a predominance of lizardite), amphiboles, pyroxene, chlorite, titanite, magnetite...amounts of CO2 [27,28]. Carbonates, usually as serpentinite matrix and/or vein infill within an extensive...Frido Unit [47] is represented by tectonized serpentinite [48â51], metabasalt [52], metagabbro, metapillow |  | | Journal (article/letter/editorial) | | near-surface weathering origin. The 6D values of the lizardite-chrysotile serpentines from all of the ultramafic...position and latitude of the sample locality. The lizardite-chrysotile samples show a progressive change in...Columbia ( - 162 to -205). The 601* values of lizardite-chrysotile range from +8*7 to -5.0 per mil and...such serpentinization, suggest that much of this lizardite-chrysotile serpentinization probably formed by...this type of serpentmization. In contrast to lizardite-chrysotile, the pure antigorites have very restricted |  | | Journal (article/letter/editorial) | | serpentinites were proved to consist of pure antigorite, lizardite, or clinochrysotile, or of mixtures of any pair...pair of these serpentine minerals. Lizardite, which is reported for the first time in Egypt, is found to...presence of lizardite as the main constituent of many of the serpentinite samples studied. Lizardite generally...entirely lizardite (fig. Ic), as shown by X-ray powder photographs, or mixtures of lizardite and clinochrysotile;...clinochrysotile; in the latter case the lizardite occupies the cores of the mesh while the walls are of clinochrysotile |  | | Report (issue) | | curve______--_____-___.. The collection of chrysotile and lizardite curves..--Detailed analysis of the curves in the...chrysotile and lizardite curves Con. Detailed analysis of the chrysotile and lizardite curves in the temperature...Mont_________________________ Clinochrysotile and lizardite (deweylite) Forest Hill, Harford County, Md____________________...Md____________________ Clinochrysotile and lizardite, Morris County, N.J____________________--__-____--------___...Clinochrysotile and lizardite, variant form, Morris County, N.J.____________________________ Lizardite plus clinochrysotile |  | Boskabadi, Arman, Pitcairn, Iain K., Broman, Curt, Boyce, Adrian, Teagle, Damon A. H., Cooper, Matthew J., Azer, Mokhles K., Stern, Robert J., Mohamed, Fathy H., Majka, Jaroslaw (2017) Carbonate alteration of ophiolitic rocks in the ArabianâNubian Shield of Egypt: sources and compositions of the carbonating fluid and implications for the formation of Au deposits. International Geology Review, 59 (4) 391-419 doi:10.1080/00206814.2016.1227281 | Journal (article/letter/editorial) | | The samples investigated include least-altered lizardite (Lz) serpentinites, antigorite (Atg) serpentinites...observed to be remobilized from rocks during the lizarditeâantigorite transition. Received 22 January 2016...Francis Group KEYWORDS ArabianâNubian Shield; serpentinite; listvenite; carbonation; gold; fluid-mobile...roadside exposures of serpentinite SW of the Meatiq Dome (Figure 2). The serpentinite outcrops are brownish...dome shows a complex exposure of greenish grey serpentinite and shear zone hosted talc-rich rocks (Figures |  | | Journal (article/letter/editorial) | | Federal Republic of Germany Rapid XRD Determination of the Chrysotile/Lizardite Ratios in Asbestos-Bearing...determination of the most common serpentinite minerals, e.g. lizardite and chrysotile, is hampered by strongly...investigations indicated that the reflections 204 of lizardite and 008 of chrysotile are best suited for quantitative...curve for the determination of the chrysotile/lizardite ratios in natural Serpentinites has been constructed...by means of synthetically prepared chrysotile/lizardite standards. Using this method serpentinites of |  | | Journal (article/letter/editorial) | | California 91109 Received June 2, 1971 Abstract. Five lizardite-chrysotile type serpentinites from California...(60 is magnetite = --2.6 to +1.7 per mil). Two lizardite and chrysotile serpentinites dredged from the...as follows: continental lizardite-chrysotile, 85~ to 115~ C; oceanic lizardite and chrysotile, 130~ C...n s in b r u e i t e c o n t e n t in t h e serpentinite. His estimates, b a s e d l a r g e l y on t...discriminating among the polymorphs antigorite, lizardite, and chrysotile are those given by Whittaker and |  | Rashid, Muhammad Imran, Benhelal, Emad, Farhang, Faezeh, Stockenhuber, Michael, Kennedy, Eric M. (2020) Magnesium Leachability of Mg-Silicate Peridotites: The Effect on Magnesite Yield of a Mineral Carbonation Process. Minerals, 10 (12) 1091 doi:10.3390/min10121091 | Journal (article/letter/editorial) | | al. studied acid dissolution of heat-activated lizardite at different pH values, solid-to-liquid ratios...has previously been studied contains 61%â62% lizardite, 30%â33% olivine, 3.8%â8.3% brucite, and 0.6%...[4]. Heat activation can be used to convert the lizardite present in dunite into more reactive amorphous...decomposition temperature for lizardite has been reported as 635 ⊠C [33]. Lizardite dehydroxylation converts...(3) Dunite is comprised of approximately 61% lizardite, which can be converted into a more reactive amorphous |  | Swayze, Gregg A., Higgins, Chris T., Clinkenbeard, John P., Kokaly, Raymond F., Clark, Roger N., Meeker, Gregory P., Sutley, Stephen J. (2004) Preliminary report on using imaging spectroscopy to map ultramafic rocks, serpentinites, and tremolite-actinolite-bearing rocks in California. Open-File Report 2004-1304. US Geological Survey doi:10.3133/ofr20041304 | Report (issue) | | .................... 4B: Details of Bear Creek Quarry area ............................................in El Dorado and Plumas Counties that contain serpentinite and ultramafic rocks as part of an experiment...Serpentine has been detected outside of known serpentinite outcrop areas, mostly as aggregate that covers...predominantly, but not exclusively, found in serpentinite and ultramafic rocks, which are common in the...were collected in August 2001 over exposures of serpentinite and ultramafic rocks that were mapped during |  | Carlsen, Kenneth S., Gale, Marjorie H., Thompson, Woodrow B., Kierstead, Matthew (2015) Belvidere Mountain Asbestos Quarries, Lowell/Eden, Vermont. Rocks & Minerals, 90 (6) 510-551 doi:10.1080/00357529.2015.1080535 | Journal (article/letter/editorial) | | passes between North Hyde Park and the Gallagher quarry because it broke up the roads. Former Roger Jones...Lamoille River). The most recently worked cluster of quarry pits, a sprawling historic extractive industrial...Eden Mills. A separate operation, the old Eden quarry, is on the south side of the mountain in Eden....as follows: âBelvidere Mountain, VAG Mine, the quarry name (Lowell, C-Area, T-C, or T), Lowell or Eden...Lowell/Eden, Vermont, but not Eden Mills. Note that quarry often refers to a site where dimension stone or |  | | Journal (article/letter/editorial) | | Abstract: During tunnelling works in the Traföà serpentinite near Kirchdorf/Styria, Austria (Kirchdorf tunnel...works, the antigoritic character of the Traföà serpentinite was shown by mineralogical analysis in the course...materials as well as from an outcrop of this serpentinite body close to the southern tunnel portal, revealed...excavation materials. Gentle crushing of antigoritic serpentinite samples proved their strong tendency for forming...conclude that the antigorite from the Traföà serpentinite, forms silicate fibres corresponding to the |  | Panasyan, L.L., Posukhova, T.V., Cherepetskaya, E.B., Jini, Zhang (2014) Mineralogical, petrophysical, and acoustic features of serpentinites, indicators of the paleodynamic conditions of their genesis (by the example of the Main Uralian Fault zone) Russian Geology and Geophysics, 55 (12) 1461-1470 doi:10.1016/j.rgg.2014.11.010 | Journal (article/letter/editorial) | | block formed with the participation of zones of serpentinite melange, which served as a lubricant during...(macrohomogeneous) is serpentinite replacing primary ultrabasites of the Nurali Ridge. Lizardite is a major silicate...tubular particles. The SEM examination showed that lizardite and chrysotile do not form regularly oriented...some grains measuring <1 ÎŒm. Sample 10 (streaky serpentinite) was taken from the Bazhenov asbestos deposit...grains and light green groundmass with laminar lizardite as the major silicate phase. Petrographic studies |  | | Journal (article/letter/editorial) | | pale to dark green, pseudo-fibrous mixture of lizardite and chrysotile that is restricted to fractures...Bonney, 1877), and the serpentine group mineral lizardite was first described from the Lizard (Midgley,...(Mg3Si2O5(OH)4), typically lizardite and chrysotile or, more rarely, antigorite. Lizardite and chrysotile develop...since at low temperatures, typically within the lizardite-chrysotile stability field, some Fe partitions...has given rise to a serpentine assemblage of lizardite and chrysotile (Midgley, 1951; Green, 1964b); |  | | Journal (article/letter/editorial) | | serpentinization process, to later metasomatism of the serpentinite, or to near-surface meteoric weathering of the...Margarita are ultramafic, chiefly tabular bodies of serpentinite and pyroxenite (Taylor 1960). The host massif...through a long period of time thereafter. All serpentinite on Margarita is highly contorted, probably due...These consist of sheared, massive, and foliated serpentinite as well as partially serpentinized peridotite...country rock at Loma de Guerra is predominantly serpentinite with minor layers of pyroxenite. The magnesite |  | | Report (issue) | | Characterizations and Strength Measurements of Serpentinite Gouges by D. E. Moore1 , D. A. Lockner1 , R...frictional strength of serpentinite. We have measured the strength of chrysotile-, lizardite-, and antigorite-rich...antigorite-rich serpentinite gouges under hydrothermal conditions. Identification of serpentine minerals was based...chrysotile gouge is roughly 0.2 at 25 °C, whereas the lizardite- and antigorite-rich gouges are at least twice...increases of chrysotile and, to a lesser extent, of lizardite, are probably caused by the partial loss of adsorbed |  | | Report (issue) | | igneous rocks, of their alteration products-serpentinite, chrysotile asbestos, steatite, talc-carbonate...and associated rocks-Continued Igneous rocks, serpentinite, and veins-Continued Mineralogy and paragenesis-Continued...-------38 39 Chrysotile ------------------40 Lizardite -------------------40 Six-layer orthoserpentine...the serpentine group _______ _ Igneous rocks, serpentinite, and veins _____ _ Dunite and peridotite --...----------------Chromitite __________________________ _ Serpentinite _________________________ _ Serpentine veins |  | | Journal (article/letter/editorial) | | for publication March 20, 1990 ABSTRACT Many serpentinite seamounts occur over a region 20-120 km west...Publishers B.V. seamounts. One is ultramafic or serpentinite intrusion as fault blocks which were thrusted...by subduction [4,7]. The other is uplift of serpentinite diapirs which originated from hydrated peridotite...within about 50 km of the trench axis most of the serpentinite seamounts were uplifted as fault blocks, whereas...sediment layers might have been caused by uplift of serpentinite diapirs [5,12]. The diapiric model was also |  | | Journal (issue) | | describes the collecting locality as âScheoberg Saxony Pucker mine.â Today we know the mineral was named...Wolfgang MaaĂen Mine field, Schneeberg, Erzgebirgskreis, Saxony, Germany. MinDat.org noted the area is a polymetallic...Fossil, Jerry Suchan/Joyce Price are called serpentinite. Serpentine minerals are light to dark green...fibers while antigorite (high temperature) and lizardite (low temperature) have platy habits. The Cahn |  | Pabst, S., Zack, T., Savov, I. P., Ludwig, T., Rost, D., Vicenzi, E. P. (2011) Evidence for boron incorporation into the serpentine crystal structure. American Mineralogist, 96 (7) 1112-1119 doi:10.2138/am.2011.3709 | Journal (article/letter/editorial) | | Ruprecht-Karls-UniversitĂ€t Heidelberg, 69120 Heidelberg, Germany 2 Institut fĂŒr Geowissenschaften, Johannes-Gutenberg-UniversitĂ€t...Johannes-Gutenberg-UniversitĂ€t Mainz, 55099 Mainz, Germany 3 School of Earth and Environment, Leeds University, Leeds... Washington, D.C. 20560, U.S.A. 1 Abstract Serpentinite mud volcanoes from the Mariana forearc comprise...the serpentine minerals are well-crystallized lizardite and chrysotile. In situ SIMS spot analyses and...serpentine grains, suggesting that serpentine, both lizardite and chrysotile in different textural regions, |  | Hajialioghli, R., Moazzen, M., Droop, G. T. R., OberhĂ€nsli, R., Bousquet, R., Jahangiri, A., Ziemann, M. (2007) Serpentine polymorphs and P-T evolution of metaperidotites and
serpentinites in the Takab area, NW Iran. Mineralogical Magazine, 71 (2) 203-222 doi:10.1180/minmag.2007.071.2.203 | Journal (article/letter/editorial) | | UniversitaÌt Potsdam, Postfach 601553, D-14415 Potsdam, Germany 2 [Received 17 March 2007; Accepted 22 July 2007]...conditions and their dominant mineral assemblage is lizardite/chrysotile + talc + calcite/dolomite. Pseudomorphic...local shearing, produced more antigorite and late lizardite in the metaperidotites. The mineral chemistry...and hydration followed, and the stability of lizardite/chrysotile constrains the T and XCO2 to <280ÂșC...distinguish the serpentine polymorphs chrysotile, lizardite and antigorite, 15 of the optically characterized |  | | Journal (article/letter/editorial) | | cations in tetrahedral and octahedral coordination. Lizardite, the flat species, forms in sufficiently large...structures of antigorite and chrysotile. However, even lizardite forms in a wide variety of polytypes, only some...of 15 or 30 sectors, each of which consists of lizardite layers. HRTEM images of the structure at sector...of inversions of the tetrahedral sheets. Using lizardite as the basis for an estimate of the curled chrysotile...abundant minerals are antigorite, chrysotile, and lizardite. Although the Mg:Si ratio in antigorite is slightly |  | | Journal (article/letter/editorial) | | restricted sense, are the common species antigorite, lizardite, and chrysotile, all polymorphs with the ideal...Veblen and Wylie 1993; Evans 2004). In the case of lizardite, there are several common elemental substituents...both Figure 1 (above). Polyhedral model of the lizardite structure (Mellini et al. 2010). Green octahedra...planar 1:1 layer structure (fig. 1). Although lizardite crystals are usually very small, they form in...in a simple platy habit similar to micas. Lizardite is the most common of the serpentine-group minerals |
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