 | | Journal (article/letter/editorial) | | found at several new localities, mainly in the Sandefjord district. Some of these finds were described...rarely vesuvianite. Most of the localities in the Sandefjord district belong to this type of occurrence. 2...molecular percentages of andradite (AND) and grossular (GRO) have been calculated based on the concentration...are shown in Fig. 1 and Fig. 2. Some zones have grossular mol-contents above 50 %. The same applies to the...found by Brl!lgger (1890) and Larsen (1979). Grossular: The yellowish garnets from the Hotvedt III quarry |  | | Journal (article/letter/editorial) | | FTIR, and TEM studies of optically anisotropic grossular garnets Fnnu M. Ar,r-tu* Department of Geology...568 ALLEN AND BUSECK: OPTICALLY ANISOTROPIC GROSSULAR GARNETS 569 TABLE1. Chemicalanalysesof gros...both commonly exhibiting growth The Eden Mills grossular is orange with composition steps and etch pits...ANISOTROPIC GROSSULAR GARNETS Fig. 2. Growth steps(arrows) on a { I 10} surfaceof Eden Mills grossular(GrroAnduAlmu)seenin...Asbestos. ALLEN AND BUSECK: OPTICALLY ANISOTROPIC GROSSULAR GARNETS 571 lighO.Interference Fig. 3. [110 |  | | Journal (article/letter/editorial) | | several silicate garnets, especially those of grossular-andradite composition (grandites),have been found...orderingofFe3* and Al over the octahedralsites (Tak6uchiand Haga, 1976; Tak6uchi et a1., 1982; Akizuki, 1984;Allen...Tak6uchiet al. (1982)examinedgarnetsof intermediate grossular-andraditecomposition that crystallized in spacegroups...optical anisotropyofgrandite garnets(Tak6uchiand Haga, 1976;Tak6uchiet al., 1982;Allen and Buseck,1988)...known for some time that certain garnets of the grossular-andraditesolid-solution seriesmay show noncubic |  | | Journal (article/letter/editorial) | | interfacial and thermodynamic mixing properties of grossular±andradite garnets Received: 17 May 2000 / Accepted:...electron microscopy (TEM) indicate that Fe3+-rich grossular±andradite solid solutions with oscillatory zoning...favorable than a 1:1 mixture of the end members grossular and andradite [by 1.6 kJ (mol exchangeable cations))1]...explain why interfaces are stable only between grossular and grandite or between andradite and grandite...indicate that there are miscibility gaps between grossular and grandite and between grandite and andradite |  | | Journal (article/letter/editorial) | | arrangementsof octahedral Fe3* and Al3" in nonisotropic grossular garnets. Akizuki (1984) observed one-to-one c...patterns in grossular garnets and suggestedthat monoclinic and triclinic symmetries of grossular garnets...the surfacefeatures. Orange grossular The morphology oforange grossular,consistingof(l l0) and(2ll) faces...AKIZUKI: GROWTH STRUCTURE AND CRYSTAL SYMMETRY OF GROSSULAR Fig. 2. Reflection-interference-contrastphotomicrograph... of the ( I 10) grouth surface of the orange grossular (A) and crosspolarized optical micrograph of the |  | | Journal (article/letter/editorial) | | garnets from skarns of the Oslo rift region (southern Norway) have been studied using analytical transmission...frequently-described phenomenon in grandite (grossular Ca3Al2Si3O12±andradite K. Pollok (&) á A. Putnis...University of Oslo, P.O. Box 1047 Blindern, Oslo, Norway Editorial responsibility: J. Hoefs Ca3Fe2Si3O12)...originate from skarns of the Oslo region, southern Norway, and have been previously described in a number...can be described as an almost binary mixture of grossular and andradite with minor amounts of spessartine |  | | Journal (article/letter/editorial) | | Naslund et al., 1983) and in a dolerite dyke in Norway (Barton and Bergen, 1984). It also occurs in rodingites...plagioclase. Small amounts of clinozoisite and grossular are locally associated with pumpellyite and albite...Sambagawa metamorphism comprise albite, pumpellyite, grossular, clinozoisite, chlorite and actinolite.Ilvaite...Secondary ilvaite in a dolerite dyke from Rogaland, SW Norway. Mineral. Mag., 48, 449-56. Buddington, A.F. and...oxides. Amer.Mineral., 68, 586-94. Tak~uchi, Y., Haga, N. and Bunno, M. (1983) X-ray s t u d y on p o |  | | Journal (article/letter/editorial) | | melilite crystals are crosscut by thin veins of grossular, Al-diopside, and Na-bearing plagioclase (Fig...sodalite, and Na-bearing plagioclase and crosscut by grossular-rich veins. (c) The coexisting Ba-rich dmisteinbergite...Al,Ti-diopside. Melilite is partly replaced by grossular and Ti-free Al-diopside. (d) Dmisteinbergite enclosing...planes in dmisteinbergite are filled by secondary grossular. Al-di = aluminum diopside; Al,Ti-di = aluminum-titanium...dmisteinbergite; dmist = dmisteinbergite; grs = grossular; hib = hibonite; mel = melilite; nph = nepheline; |  | | Journal (article/letter/editorial) | | Fe3A12Si3Oj2), spessartine (98% Mn3A12Si3012), grossular (97% Ca3A12SiaO~2), and andradite (99% Ca3Fe2Si30~2)...why pyrope has larger calorimetric entropy than grossular, contrary to expectations (e.g., Kieffer 1980)...Fe3A12SiaO12), spessartine (98% MnBA12Si3012), grossular (97% Ca3A12Si3012 ), and andradite (99% Ca3FezSi3012)...piece of 94% pyrope. Preparations of synthetic grossular and andradite powders used in the thin film experiments...3 + Ti Si Mole % Pyrope Almandine Spessartine Grossular Andradite Pyrope* GRR 945 Pyrope* USNM 162498 |  | NAKAMURA, Yurie, KURIBAYASHI, Takahiro, NAGASE, Toshiro, IMAI, Hiroyuki (2017) Cation ordering in iridescent garnet from Tenkawa village, Nara prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 112 (2) 97-101 doi:10.2465/jmps.161114a | Journal (article/letter/editorial) | | lamellae texture consisting of andradite–rich and grossular–rich layers. The average chemical composition...researchers, has andradite (Ca3Fe3+ 2 Si3O12)– grossular (Ca3Al2Si3O12) compositions. Origin of iridescence...andradite component and the other is rich in grossular component. The two layers are stacking up alternately...Birefringence is commonly observed in uvarovite– grossular– andradite (ugrandite) solid solution, and partial...FTIR and TEM studies of optically anisotropic grossular garnets. American Mineralogist, 73, 568–584. Badar |  | | Journal (article/letter/editorial) | | strongly birefringent andradite-grossular garnet by Takruchi & Haga (1976). The ordered monoclinic sectors...is grateful to B. B. Jensen, Geological Museum, Norway, who read and corrected the manuscript. Also, the |  | | Journal (article/letter/editorial) | | のAlとFeの に依 存 して い る(Takeuchi 秩 序‑無 秩 序 置 換 and Haga, 1976)こ とを 示 す も の と して 注 目 さ れ た 。 釜 石 鉱 山 で...Akizuki, M. (1984), Origin of optical variation in grossular-andradite garnet. Amer. Mineral. 69, 328-338....(1989), Growth structure and crystal symmetry of grossular garnets from the Jeffrey mine, Asbestos, Quebec...Japan. Miner. J., 10, 181-191. Takeuchi, Y. and Haga, N. (1976), Optical anomaly and structure of silicate |  | | Journal (article/letter/editorial) | | 1964).Tak€uchiand Haga (1976) suggestedthat the causefor low symmetry in andradite-grossular garnet showing...3a and 3b, due to thinner section. Tak6uchi and Haga (1976)discoveredthat grossularandraditegarnetexhibiting...Mineralogical Magazine, 26, r-8. Tak6uchi, Y. and Haga, N. (1976)Optical anomaly and structure ofsilicate |  | KOBAYASHI, Shoichi, MIYAWAKI, Ritsuro, MOMMA, Koichi, FUJISAWA, Akiko, KANEDA, Hiroaki (2013) Anisotropic garnet from the Yamansu ore deposit, Xinjiang, China. Journal of Mineralogical and Petrological Sciences, 108 (5) 245-254 doi:10.2465/jmps.120927 | Journal (article/letter/editorial) | | composition of the garnet essentially belongs to the grossular (Grs)-andradite (And) solid solution ranging from...single-crystal garnets of quaternary system of pyralspite-grossular. (The name pyralspite is used a convenient abbreviation...structure were often conducted for garnets. In the grossular-andradite solid solution series, optically anisotropic...grandite garnets (the solid solution series between grossular and andradite endmembers) from skarns in Mali...garnets (the solid solution series among uvarovite, grossular and andradite end-members) using data of the crystal |  | | Journal (article/letter/editorial) | | the grandite series, andradite (CasF%SiaO12)-grossular (CasA12Si3012), and its average chemical composition...Fe and A1, in the crystal structure (Takeuchi and Haga 1976). The presence of the submicroscopic and periodic...opal. Acta Crystallogr A24: 427-434 Takeuchi Y, Haga N (1976) Optical anomaly and structure of silicate |  | | Journal (article/letter/editorial) | | anomalies and surface texture of birefringent grossular–andradite from Kamaishi mine, Japan, were made...is monoclinic or triclinic. Key-words: garnet, grossular–andradite, lamellar texture, cation order, optical...respect to different mechanisms. The garnets like grossular and andradite of near end-member composition are...Standish, 1973; Kitamura & Komatsu, 1978). Some grossular–andradite garnets show tweed-like lamellar texture...crystals of garnet. Murad (1976) examined some grossular–andradite garnets from different localities with |  | | Journal (article/letter/editorial) | | Crystal structure of a birefringent andradite–grossular from Crowsnest Pass, Alberta, Canada Sytle M....2013) The structure of a birefringent andradite–grossular sample was refined using single-crystal X-ray diffraction...1017/S0885715613001255] Key words: andradite, grossular, birefringence, three-phase intergrowth, Rietveld...crystal structure of a birefringent andradite–grossular sample from Crowsnest Pass, southern Alberta....Diffraction 29 (1), March 2014 The andradite–grossular sample occurs in an extrusive alkaline igneous |  | | Journal (article/letter/editorial) | | 17 km nordest for Oslo, like nord for tettstedet Haga. Det eies av Ollendorf og er en del av Feiringkonsernet...FLUSSPAT. KVARTS R.USSPAT, KALKSPAT R.USSPAT GROSSULAR. FlUSSPAT, KALKSPAT. KVARTS. KLORm (MONTMORlLLONm...ALKALIFELTSPATOMVANDLING ALBITT. BLYGLANS. KLORITT. KAlKSPAT. GROSSULAR. HEMAnTT I-iAN$.J0RG EN BERG. 1 ~ Figu r 3....lkspatdominerte ganger med blyglans, kloritt, albitt, grossular og hematitt. - Uregelmess ige soner med omvandling...funnet som opp til 2,5 mm store 210 Figur 6. Grossular og epidot fra niva 3. Stuffen er 8 x 5 em. Foto |  | Lacivita, Valentina, D’Arco, Philippe, Orlando, Roberto, Dovesi, Roberto, Meyer, Alessio (2013) Anomalous birefringence in andradite–grossular solid solutions: a quantum-mechanical approach. Physics and Chemistry of Minerals, 40 (10) 781-788 doi:10.1007/s00269-013-0612-6 | Journal (article/letter/editorial) | | ORIGINAL PAPER Anomalous birefringence in andradite–grossular solid solutions: a quantum-mechanical approach... birefringence and axial angle) of andradite–grossular (Ca3Fe2Si3O12–Ca3Al2Si3O12) solid solutions have...quite regularly between the andradite (1.860) and grossular (1.671) end-members; the birefringence d and the...observed. Keywords Garnets Solid solutions Grossular–andradite Anomalous birefringence Coupled...variations (Jamtveit and Andersen 1992). Andradite and grossular (grandite) components usually account for more |  | | Journal (article/letter/editorial) | | ideally {Mn2+ 3 }[Al2](Si3)O12. Some spessartine, grossular, {Ca3}[Al2](Si3)O12; andradite, {Ca3}[Fe3+ 2 ]...Some spessartine (this study), grossular (Antao, 2013c), andradite-grossular (Antao, 2013b), andradite (Antao...Spessartine (Sps) Pyrope (Prp) Almandine (Alm) Grossular (Grs) Skiagite Remainder Total Quality index ...various standards [e.g., almandine-pyrope (MgKα), grossular (CaKα), 235 Powder Diffr., Vol. 29, No. 3, 2014...(Antao, 2013a, 2013b; Antao and Klincker, 2013a), grossular (Antao, 2013c), spessartine (this study), almandine |  | | Journal (article/letter/editorial) | | anisotropic garnets are sometimes found in the grossular-andradite series (grandite – garnet) and they...similar-sized octahedral cations, such as the grossular-andradite series, favor an orthorhombic – (Fddd)...Acta Crystallographica, A32, 751–767. Takéuchi, Y., Haga, N., Umizu, S., and Sato, G. (1982) The derivative |  | Ivanova, T. I., Shtukenberg, A. G., Punin, Yu. O., Frank-Kamenetskaya, O. V., Sokolov, P. B. (1998) On the complex zonality in grandite garnets and implications. Mineralogical Magazine, 62 (6) 857-868 doi:10.1180/002646198548089 | Journal (article/letter/editorial) | | The available data on compositional zoning in grossular-andradite (grandite) garnets occurring at different...major zones with intermediate composition in the grossular-andradite series usually contain the fine zones...isotropic zones have compositions close to that of grossular, whereas birefringent ones represent intermediate...range of composition variation includes pure grossular, we may expect the occurrence of isotropic layers...small negative deviation from ideality in the grossular andradite join, which would prevent any immiscibility |  | | Journal (article/letter/editorial) | | Al-rich (pyrope, almandine, spessartine, and grossular) and little is known about garnets with a more...suggest preferential incorporation of HREE in grossular and LREE in more andraditic compositions. Variations...summarizing Crown Jewel garnet compositions. Grs-grossular; Adr-andradite; Pyralspite (pyrope + almandine...show that garnets from the SWOZ belong to the grossular–andradite (grandite) solid solution ranging in...0 Uvarovite 0.0 0.0 0.0 0.1 0.0 n.a. n.a. 0.0 Grossular 41.3 47.7 36.2 56.6 36.2 1.3 45.9 0.0 Andradite |  | | Journal (article/letter/editorial) | | ugrandite series garnet, uvarovite (Ca3Cr2Si3O12) – grossular (Ca3Al2Si3O12) – andradite (Ca3Fe2Si3O12) (e.g...very close to the border between andradite and grossular. Figure 2 shows a back–scattered electron (BSE)...Figure 2. Rossman and Aines (1991) reported that grossular essentially contains H2O with substitution SiO4...The solid line links the values for the cubic grossular and andradite reported by Novak and Gibbs (1971)...Akizuki, M. (1984) Origin of optical variation in grossular–andradite garnet. American Mineralogist, 69, 328–338 |  | | Journal (article/letter/editorial) | | functions for the structure of Ca3Al1.6Fe0.4Si3O12 grossular garnet (left hand side of the table; Takeuchi...functions for the structure of Ca3Al1.6Fe0.4Si3O12 grossular garnet (Takeuchi et al. 1982) to the results of...results. This garnet is a solid solution andradite-grossular garnet and therefore none of the standard reference...end-member reference pattern peak locations for grossular and andradite. Two additional peaks are present...File Release 1999, Data Sets 1–49 and 70–86. * Grossular. † Hydrogrossular. ‡ Synthetic andradite. we |
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