著者

Nobuhide MURAKAMI Toshio KATO Yasunori MIÚRA Fumitoshi HIROWATARI

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.8, no.2, pp.110-121, 1976 (Released:2007-03-31)

参考文献数

18

被引用文献数

5 18

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Sugilite occurs as an essential mineral amounting to 3–8 percent by volume in aegirine syenite from Iwagi Islet, Ehime Prefecture. It is associated with albite, aegirine, pectolite and a Ca-K-Ti silicate (a still to be identified mineral). Sugilite is light brownish yellow, luster vitreous, streak white. Symmetry hexagonal. Cleavage 0001 weak. Hardness 6–61/2. Specific gravity 2.802 (calc.), 2.74 (meas.).Under the microscope, it is uniaxial negative with ε=1.607, ω=1.610, ω−ε=0.003, and colorless.Estimated chemical composition is SiO2 71.38, TiO2 0.51, A12O3 2.97, Fe2O3 12.76, FeO 0.19, Li2O 3.14, Na2O 4.37, K2O 3.76, H2O(+) 0.81, H2O(−) 0.12, total 100.01%, corresponding ideally to (K, Na)((H2O), Na)2(Fe3+, Na, Ti, Fe2+)2(Li, Al, Fe3+)3(Si12O30) with Z=2.The unit cell dimensions are a0=10.007(2), c0=14.000(2)Å. Space group D26h−P6⁄mcc. X-ray powder data resemble those for sodgianite, milarite, osumilite, merrihueite, roedderite and brannockite.It is clear from the above-cited data that sugilite has milarite-type structure and resembles sodgianite and brannockite in containing lithium in tetrahedral site, but it is distinguished by a high content of ferric iron in 6-coordination.The name is given in honour of the late Professor Ken-ichi Sugi (1901-1948), who first found the occurrence of this mineral with Mr. M. Kutsuna.

著者

TAKEO WATANABE

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.2, no.6, pp.408-421, 1959 (Released:2008-03-18)

参考文献数

18

被引用文献数

7 10

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The ore deposits of the Noda-Tamagawa mine have become famous for their wealth of mineral species, the production of high grade manganese ores, and also the recent discovery of uranium ores. More than seventy minerals have been found in this mining area including such rare minerals as pyrochroite, manganosite, vredenburgite, yoshimuraite (a new mineral of Ba, Sr, Mn, Ti-silicate), etc. The ore deposits of this mine may be classified into the following types: (A) The contact-metamorphosed bedded manganese deposits in metamorphosed roof pendant in the batholithic mass of granitic rocks. (B) (1) The uranium-bearing veins. (2) The cobalt-nickel-molybdenum-bearing uranium deposits associated with pelitic hornfels. (C) Pyrometasomatic copper-bearing pyrrhotite deposits found in limestone. (D) Gold-silver-bearing quartz-arsenopyrite veins. Among them manganese deposits are economically the most important ones. The geology and ore deposits of the mine are briefly described. The mineral parageneses of ores and country rocks are shown in Tables 1 and 2.

著者

Yoshikazu AOKI Hideo AKASAKO Kiyotaka ISHIDA

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.10, no.8, pp.385-395, 1981 (Released:2007-03-31)

参考文献数

6

被引用文献数

2 3

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Taneyamalite is triclinic, space group P1 or P-1, unit cell parameters: a=10.1882±0.0012, b=9.7544±0.0006, c=9.5674±0.0011 Å, α=90.429°±0.019°, β=71.025°±0.014°, γ=109.168°±0.007°, V=844.03±0.13 Å3, Z=1. Principal powder lines (d in Å) with relative intensities and indices are: 9.155(100) (010), 7.948(22) (-110), 4.578(15) (020), 3.614(13) (120), 3.252(37) (-130), 3.067(17) (-230), 2.774(24) (220), 2.665(18) (3-13), 2.202(21) (230), 1.696(17) (5-43), 1.686(12) (150). Wet chemical analysis gives: SiO2 40.32, TiO2 0.05, Al2O3, 2.08, Fe2O3 8.68, FeO 11.88, MnO 23.83, MgO 2.50, CaO 0.53, Na2O 1.63, K2O 0.10, H2O+ 6.99, H2O− 0.73, total 99.32%, corresponding to (Na0.91Ca0.16K0.04)Σ1.11 (Mn2+5078Mg1.07Fe2+2.85Fe3+1.87Al0.26)Σ11.83 (Si11.55 Al0.44 Ti0.01)Σ12.00(O30.63 (OH)13.37)Σ44.00 on the basis of O+OH=44. The ideal formula is (Na, Ca) (Mn2+, Mg, Fe2+, Fe3+, Al)12 (Si, Al)12 (O, OH)44, where Na and Mn2+ are the most dominant species in the respective sites. Therefore, taneyamalite is a Mn2+-dominant analogue of howieite. It is dark brown to black ni color, luster vitreous. Streak brown. Good (010) and fair (100) cleavages. Mohs’ hardness of the aggregate is 5–6. Specific gravity 3.30 (meas.), density 3.34 (calc. on unit cell data) and 3.31 (calc. on Gladstone-Dale’s law). It is optically biaxial, negative, 2V about 70°, refractive indices α=1.697, β=1.720, γ=1.732. Pleochroism and absorption are X=pale golden yellow, Y=yellowish brown, Z=dark brown; X<Y<Z. Infrared spectrum shows strong absorptions at 3525, 3420, 1029, 969, 617, 478 and 430 cm−1. These properties indicate a close relation of the mineral to howieite. The mineral occurs as aggregates of needle-like crystals in cracks or as subordinate component in metamorphosed ferruginous chert belonging to glaucophane schist facies at the Taneyama mine, Kumamoto Prefecture, Southwestern Japan.

著者

Toshio KATO Yasunori MIÚRA Nobuhide MURAKAMI

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.8, no.3, pp.184-192, 1976 (Released:2007-03-31)

参考文献数

13

被引用文献数

2 14

---

Crystal structure of sugilite has been refined by the least squares method using 435 reflections measured on an automated single crystal diffractometer using MoKα radiation. The final unweighted R-factor is 0.047 for 429 reflections. The cell dimensions are: a=10.007(2), c=14.000(2)Å; space group P6⁄mcc. Sugilite is isostructural with milarite group minerals, and can be described as (K0.81Na0.19)[12] (H2O0.91Na0.64)2[9] (Fe3+1.32Na0.59Ti4+0.06Fe2+0.03)2[6] (Li2.12Al0.59Fe3+0.29)3[4]Si[4]12O30 with Z=2 by structure formula of milarite group defined by Forbes, Baur and Khan (1972). The SiO4 tetrahedra from hexagonal double rings with the composition Si12O30. These double rings are linked by Li, Al and Fe3+ atoms in tetrahedral four-coordination to form a tetrahedral frame structure. Na and H2O are located in nine-coordinated sites.

著者

Shoji HIGASHI

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.11, no.3, pp.138-146, 1982 (Released:2007-03-31)

参考文献数

9

被引用文献数

43 46

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Mineralogical properties of tobelite, a new ammonium-dominant dioctahedral mica, found in the Ohgidani pottery stone deposit at Tobe, Ehime Prefecture, Japan, are described.This mineral, accompanied by quartz, occurs as a hydrothermal alteration product of a biotite andesite dyke. Wet chemical analysis gives a structural formula: ((NH4)0.53K0.19Na0.01    0.27)1.00 (Al1.97Ti0.00Fe3+0.03Mg0.05)2.05(Si3.17Al0.83)4.00O10(OH)2. The low interlayer charge is explained with its poorly crystallized nature. The X-ray powder diffraction pattern is very close to that of synthetic NH4Al2Si3AlO10(OH)2 by Eugster and Munoz (1966), and is satisfactorily indexed on 1M polytype cell having a=5.219Å, b=8.986Å, c=10.447Å and β=101.31°. Space group may be C2⁄m. Tobelite is characterized by its larger unit layer thickness (10.25Å) than that of potassium dioctahedral mica. This material yields an endothermic reaction and absorption bands specific to ammonium in DTA curve and infrared spectrum, respectively. Optically it is biaxial, negative, 2Vcalc.=28°. Refractive indices are α=1.555, β=1.575, γ=1.581, all±0.002.Mineralogical description is made also on tobelite from the Horo pyrophyllite deposit, Hiroshima Prefecture, Japan, which is well crystallized as compared with the Tobe material and is tentatively determined to be of 2M2 polytype.

著者

AKIRA KATO KUNIHIKO SHINOHARA

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.5, no.4, pp.276-284, 1968 (Released:2008-03-18)

参考文献数

10

被引用文献数

7 10

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The first roquesite in Japan found in a magnetite-bearing massive chalcopyrite ore from the subvolcanic ore deposits of the Akenobe mine, Hyogo prefecture was determined by electron microprobe analysis giving Cu, 24.9; Fe, 1.8; Mn, 0.2; Zn, 0.1; In, 46.3; S, 25.7; total, 99.0%, and was studied under the ore microscope. Mineral assemblage with this specimen was found to be different from that of the original French roquesite, which may be due to the special condition of its formation, or possibly a lower Eh condition. Occurrence of some indium minerals in Japanese subvolcanic ore deposits suggests the presence of an ‘indium ore province’.

著者

TAKESHI TOMISAKA HANS P. EÜGSTER

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.5, no.4, pp.249-275, 1968 (Released:2008-03-18)

参考文献数

22

被引用文献数

22 29

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The main end members of the sodalite group, that is, chlorine sodalite, bromine sodalite, iodine sodalite, hydroxylsodalite, carbonate noselite, sulfate noselite, chromate noselite, molybdate noselite and tungstate noselite, were synthesized under hydrothermal and dry conditions, and the cell edges ao and cell volumes V of these minerals were determined. These minerals can be divided into two subgroups: the sodalite subgroup, which includes chlorine sodalite, bromine sodalite, iodine sodalite and hydroxylsodalite, and the noselite subgroup, which includes carbonate noselite, sulfate noselite, chromate noselite, molybdate noselite and tungstate noselite. The X-ray powder diffraction patterns of the four end members of the sodalite subgroup make their appearance only as h+k+l=2n. Those of five other end members which belong to the noselite subgroup appear as h+k+l=2n and h+k+l=2n+1. The dissociation temperatures of chlorine sodalite and sulfate noselite are 1230°±5°C in chlorine sodalite and 1255°±5°C in sulfate noselite, and complete solid solution was found to exist between chlorine sodalite (Na8Al6Si6O24Cl2) and sulfate noselite (Na8Al6Si6O24SO4) at temperatures above 1050°C. Compositions of the chlorine sodalite-sulfate noselite solid solutions were determined from the cell edges ao, obtained by measuring the shifts of the 211, 310 and 222 reflections (CuKα). A solvus of the chlorine sodalite-sulfate noselite series was determined at temperatures below 1050°C. Polymorphic relationship was discovered in the sulfate noselite in the noselite subgroup.

著者

Nobuo MORIMOTO

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.14, no.5, pp.198-221, 1989 (Released:2007-03-31)

参考文献数

31

被引用文献数

4 70

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This is the final report on the nomenclature of pyroxenes by the Subcommittee on Pyroxenes established by the Commission on New Minerals and Mineral Names of the International Association. The recommendations of the Subcommittee as put forward in this report have been formally accepted by the Commision. Accepted and widely used names have been chemically defined, by combining new and conventional methods, to agree as far as possible with the consensus of present use. Twenty names are formally accepted, among which thirteen are used to represent the end-members of definite chemical compositions. In common binary solid-solution series, species names are given to the two end-members by the “50% rule”. Adjectival modifiers for pyroxene mineral names are defined to indicate unusual amounts of chemical constituents. This report includes a list of 105 previously used pyroxene names that have been formally discarded by the Commision.

著者

Hidemichi HORI Eiji KOYAMA Kozo NAGASHIMA

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.10, no.7, pp.333-337, 1981 (Released:2007-03-31)

参考文献数

11

被引用文献数

9

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Kinichilite, a new mineral from the Kawazu mine, is hexagonal with a=9.419 Å, c=7.666 Å, space group P63 or P63⁄m. The empirical formula derived from the chemical analysis is: (Fe2+1.13Mg0.47Zn0.43Mn2+0.17)Σ2.20(Te2.97Se0.03)Σ3.00 O9.00(H1.38Na0.22)Σ1.60·3.2H2O, corresponding to Fe2+ dominant analogue of zemannite.It is dark brown in colour. Subadamantine luster and brown streak. No cleavage. Density (calc.) 3.96 g/cm3 from normalized empirical formula and Z=2.

著者

Ernest H. NICKEL

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.17, no.7, pp.346-349, 1995 (Released:2007-03-31)

被引用文献数

5 6

著者

Tohru OZAWA Akihiro SAITOW Hidemichi HORI

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.20, no.4, pp.179-187, 1998 (Released:2007-03-31)

参考文献数

14

被引用文献数

1 1

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Giessenite was reported as an acicular crystal that shared a close association with Sb-bearing cosalite from the Otome mine, Yamanashi Prefecture (Ozawa and Hori, 1982). Recent criteria classify it as izoklakeite.The Otome izoklakeite, which is orthorhombic (Pnnm or Pnn2 from its orthogonal lattice and systematic extinction, in agreement with previous reports), has unit-cell dimensions of a 34.067, b 38.085, c 4.056Å. In addition, diffuse reflections which double the periodicity of 4.056Å along the c-axis are observed, also in agreement with the report on Vena izoklakeite (Zakrzewski and Makovicky, 1986).An electron microprobe analysis gives Cu 0.8, Fe 0.3, Ag 1.1, Pb 46.5, Bi 27.2, Sb 7.3, S 16.2, total 99.4wt.%, yielding the empirical formula (Cu2.7Fe1.2)3.9Ag2.2Pb48.7(Bi28.2Sb13.0)41.2S109.7, assuming the total cation=96 in a unit cell. It has a Sb/(Sb+Bi) value of 0.316, and is the most Bi-rich of the known izoklakeites.

著者

SATOSHI MATSUBARA KOZO NAGASHIMA

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.7, no.6, pp.513-525, 1975 (Released:2008-03-18)

参考文献数

15

被引用文献数

5 5

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Orthoericssonite, BaMn2+2Fe3+ [O|OH|Si2 O7], hitherto reported only from the Långban mine, Sweden, was found in a jacobsite-bearing rhodonite-aegirine-tephroite ore from the Hijikuzu mine, Iwate Prefecture, as a product of strong thermal metamorphism due to granitic intrusion. It is orthorhombic, space group Pmmn, a0=20.30Å, b0=6.986Å, c0=5.387Å, Z =4. Wet chemical analysis by K. N. gives the empirical formula (Ba0.688Sr0.256K0.024Na0.013Li0.003)0.984(Mn1.4352+Fe0.5462+Mg0.086)2.067(Fe0.9313+Ti0.093Al0.034)1.058Si2.062 O7.000(O1.389(OH)0.611)2.000 as O=9, specifying it as a strontian and ferroan variety. It is optically biaxial positive, 2V about 50°, r ?? v strong, ns α=1.802, β=1.840, γ=1.888; strongly pleochroic, X=yellowish brown, Y=reddish brown, and Z=dark brown.

著者

Shoichi KOBAYASHI Hiroshi MIYAKE Tetsuya SHOJI

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.13, no.6, pp.314-327, 1987 (Released:2007-03-31)

参考文献数

19

被引用文献数

14 16

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A jadeite rock from Oosa-cho, northern part of Okayama, is associated with serpentinite of the Sangun metamorphic belt. It consists predominantly of jadeite with such accessary minerals as grossular, analcime, prehnite, vesuvianite, natrolite, thomsonite, stronalsite, zircon, deweylite, chlorite and diopside. It is cut by many veinlets composed of one or more of grossular, analcime, vesuvianite, stronalsite, chlorite and zeolite minerals.On the electron microprobe image, some of jadeite crystals show a growth zoning of diopsidic (Jd96Di3Fs1) and pure (approximately Jd100) parts. Some crystals of garnet show chemical zoning. The core is poor in TiO2, FeO and CaO, but rich in Al2O3 as compared with the rim. Zircon occurs sporadically. Under the microscope, a few grains of stronalsite are observed. Its chemical composition is very similar to the ideal formula, Na2SrAl4Si4016. Ba-rich parts are also recognized in a stronalsite crystal.

著者

KAZUNOSUKE MASUTOMI KOZO NAGASHIMA AKIRA KATO

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.3, no.3, pp.139-147, 1961 (Released:2008-03-18)

参考文献数

12

被引用文献数

1 2

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A black prismatic kobeitc-like mineral from a granite pegmatite of the Ushio mine in Ômiya town, Kyoto Prefecture and the kobeite from the original locality have been studied. Both the chemical analyses and the X-ray powder patterns of heated materials of the two minerals gave the concordant results. The two minerals contain notable amount of zirconium and after heat treatment give X-ray patterns similar to those of stabilized cubic zirconia. Kobeite will not be a member of the euxenite-polycrase series but may be a distinct mineral species of multiple oxide containing Y, Fe, U, Ti, Zr and Nb as the main components.

著者

Kazuo HARADA Mariko HONDA Kozo NAGASHIMA Satoshi KANISAWA

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.8, no.2, pp.95-109, 1976 (Released:2007-03-31)

参考文献数

28

被引用文献数

8 14

---

A new mineral with the following formula is described: (K1.788Na0.148 Rb0.141)(Li2.536Mn2+0.985Fe2+0.183Fe3+0.061Al1.958Ti0.012) (Si6.646 Al1.354)·O19.634 (F3.159 (OH)1.202)=(K, Na, Rb)2.077(Li, Mn, Fe2+, Fe3+, Al, Ti)5.735(Si, Al)8.000·O19.639 (F, OH)4.361 as OH+O+F=24. It corresponds to manganese analogue of zinnwaldite and is expressed by a K2(Mn2+2−1Li2−3Al2) (Al2−1Si6−7O20) (F2−3 (OH)1−2). The name masutomilite is proposed for the material with Mn2+> Fe2+ in honor of Dr. Kazunosuke Masutomi for his contribution to minerals of Japan.X-ray powder diffraction and optical data indicate the mineral to be monoclinic, space group Cm or C2⁄m with a 5.253(8)Å, b 9.085(4)Å, c 10.108(8)Å, β 100.15(0.03)°, V 474.84(0.56)Å3 and Z=1. The precession method verified the space group. The strongest lines in the X-ray powder pattern are 10.10(72)(001), 3.64(43)(-112), 3.32(100)(003), 3.09(58)(112), 2.903(35)(-113, 031), 2.589(17)(200, -131), 1.989(46)(005), 1.653(23)(204, -135). It is pale purplish pink. Transparent. Cleavage {001} perfect. Hardness (Mohs) 2.5. Sp. Gr. (meas.) 2.94 and 2.96 (calc). Optically biaxial negative with α 1.534, β 1.569, γ 1.570, (−)2V 29°–31°, r>v very weak, X, Z colorless to pale purple, Y purple, absorption X<Z<Y. Optical orientation b=Y, X nearly perpendicular to (001), a∧Z 3°.The mineral occupies core part of a zoned single mica crystal up to 10 cm across and 1 cm thick found in a druse of granite pegmatite at Tanakamiyama, Otsu, Shiga Prefecture, Japan. The outer part of the crystal is a brown manganoan zinnwaldite. The associated minerals are topaz, schorl, albite and quartz.For comparison of a high manganese zinnwaldite with masutomilite, a mica from Tawara, Naégi district, Hirukawa-mura, Gifu Prefecture, Japan is also described.A complete solid solubility does exist for the masutomilite–lepidolite–zinnwaldite series. The relationship between chemical composition, unit-cell dimensions a or b, and optical properties for the masutomilite–lepidolite series is figured out.

著者

YUKITOSHI URASHIMA TADAO WAKABAYASHI TOSHIYUKI MASAKI YASUNORI TERASAKI

出版者

日本鉱物学会

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.7, no.5, pp.438-444, 1974 (Released:2008-03-18)

参考文献数

12

被引用文献数

8 27

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A new mineral ruthenium in a concentrate from the Horokanai platinum placer, Hokkaido, is described. Electron-microprobe analysis of this mineral gave the following weight percentages: Ru 64.43, Ir 14.62, Pt 9.14, Rh 7.05, Os 5.29, Pd 0.49, Fe 0.21, Ni tr., Cu tr., total 101.23. The result corresponds to the composition Ru1.47Ir0.18Rh0.16Pt0.11Os0.06Pd0.01Fe0.01, and the proportions between three prin-cipal metals are Ru:Ir:Rh=81.5:9.7:8.8, which falls in the region of mineral ruthenium because Ru content is more than 80 atomic percent of the three elements. This mineral is, therefore, named ruthenium after its chemical composition. Reflection colour is white with light creamy tint, and reflectivity is about 60 percent. It shows optically weak anisotropism. It occurs as a tabular crystal associated with rutheniridosmium in the peripheral area of a platinum grain. The size of the crystal is 35×7 microns in polished section. The mineral ruthenium and the name have been approved by the Commission of New Minerals and Mineral Names, IMA.

著者

YAMADA Manabu MIYAWAKI Ritsuro NAKAI Izumi IZUMI Fujio NAGASHIMA Kozo

雑誌

Mineralogical journal (ISSN:05442540)

巻号頁・発行日

vol.20, no.3, pp.105-112, 1998-07-01

著者

Manabu YAMADA Ritsuro MIYAWAKI Izumi NAKAI Fujio IZUMI Kozo NAGASHIMA

出版者

Japan Association of Mineralogical Sciences

雑誌

Mineralogical Journal (ISSN:05442540)

巻号頁・発行日

vol.20, no.3, pp.105-112, 1998 (Released:2007-03-31)

参考文献数

11

被引用文献数

1 9

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The crystal structure of ammonioleucite was refined by a Rietveld analysis using X-ray diffraction data of the type specimen. The refinement with a space group I4l/a was converged at Rwp=12.12, Rp=9.39, RF=4.86, RB=7.71, and Re=2.55% with lattice parameters of a=13.2106(6) and c=13.7210(7) Å. Ammonioleucite is isostructural with leucite. The (Si, Al)O4 tetrahedra form 4-, 6-, and 8-membered rings by sharing their apical oxygen atoms. The crystal structure consists of the three-dimensional framework of the rings of the tetrahedra. Ammonium ions are located in cavities in the framework. The (NH4)+ ions in these cavities are larger than the corresponding K+ ions in leucite, causing the cavities to be enlarged relative to those in leucite. Among the 4-, 6-, and 8-membered rings of (Si,Al)O4 tetrahedra, only the 8-membered rings have diameters large enough to allow the migration of exchangeable K+, (NH4)+ and Na+ ions.