著者

南部 松夫 谷田 勝俊 北村 強

出版者

Japan Association of Mineralogical Sciences

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.62, no.6, pp.311-328, 1969-12-05 (Released:2008-08-07)

参考文献数

31

被引用文献数

6 11

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New mineral kôzulite belongs to the alkali amphibole group in which manganese (II) is the predominant cation of the Y-position. The mineral occurs as banded aggregate of short prismatic crystala with the faces of b, m and r up to 3.5×2.0×1.5mm in size, in the bedded magnanese deposit of Tanohata Mine, Iwate Prefecture, Japan, in the highly metamorphosed Jurassic chert-hornfels by the intrusion of granodiorite. Associated minerals are braunite, rhodonite, manganiferou alkali pyroxene, manganiferou alkali amphibole and quartz. Color reddish black to black, streak light purplish brown, luter vitreous, H. 5, G. measured 3.30, calculated 3.36. Cleavage (110) perfect. Optically biaxial negative, ns α=1.685, β=1.717(mean), γ=1.720, 2Vα=34-36°, cΛX=25°. Strongly pleochroic with X yellow-brown, Y reddish brown, Z dark brown, absorption Z〉Y〉X, dispersion very weak, probably r〉v. Chemical analysis gave SiO2 51.38, TiO2 none, Al2O3 1.69, Fe2O3 2.85, FeO none, MnO 27.96, ZnO 0.03, MgO 2.71, CaO 1.12, BaO none, Na2O 8.41, K2O 1.36, H2O (-) 0.06, F 0.08, sum 99.75-O (=F2) 0.03=99.72%, corresponding to (Na2.54 K0.27 Ca0.19)3.00 [(Mn3.69 Mg0.63)4.32 (Fe+30.33Al0.31)0.64]4.96Si8.00O21.78[(OH)2.18F0.04]2.22, as O+OH+F=24. The x-ray powder data showed the mineral to be monoclinic with a0=9.91, b0=18.13, c0=5.28Å, β=104.5° and precession photographs of the same specimens by N. Morimoto, Osaka University, showed it to be monoclinic, space group C2/m, a=9.91±0.02, b=18.11±0.04, c=5.30±0.02Å, β=104.6°±0.1°, Z=2. The strongest x-ray lines are 8.51 (100) (110), (4.52) (10) (040), 3.40 (10) (131), 3.29 (17) (240), 3.15 (67) (310), 2.96 (6) (221), 2.827 (31) (330), 2.748 (8) (331), 2.722 (10) (151), 2.602 (6) (061), 2.545 (6) (202), 2.349 (7) (351), 2.174 (9) (261), 1.908 (7) (510), 1.447 (7) (661). The high-temperature x-ray study and DTA indicate that the mineral breaks down to braunit plus glas at about 950°C. The name is for late Dr. Shukusuke Kôzu (1880-1955), formerly Professor in Tohoku University, Japan who made many contributions to the study of rock forming minerals. Type material is preserved at Tohoku University. The mineral and name were approved before publication by the Commission on New Minerals and Mineral Names, IMA.

著者

南部 松夫 岡田 広吉

出版者

東北大學選鉱製錬研究所

雑誌

東北大學選鑛製錬研究所彙報 = Bulletin of the Research Institute of Mineral Dressing and Metallurgy, Tohoku University (ISSN:0040876X)

巻号頁・発行日

vol.19, no.1, pp.1-12, 1963-10-28

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The bedded manganese oxide deposits of Iwasaki distrct, Aomori Prefecture occur in most cases in tuffaceous sandstone of the upper Miocene age. The mother rock of these deposits is slightly affected by the hydrothermal alteration, and the ore is characterized by the mineral composition of a single manganese mineral, todorokite. The mineral is identified mainly by the X-ray powder method and chemical and differential thermal analyses. The chemical formula is (Mn^<2+>_<0.58> Ca_<0.09> Mg_<0.20> Ba_<0.04>)_<0.90> Mn^<4+>_<3.06> O_<7.00>・2.1 H_2O which agrees well with Mn^<2+>Mn_3^<4+>O_7・2-xH_2O given by L.T.Larsen in 1962.

著者

南部 松夫 谷田 勝俊

出版者

Japan Association of Mineralogical Sciences

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.65, no.1, pp.1-15, 1971-01-05 (Released:2008-08-07)

参考文献数

14

被引用文献数

6 7

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Chemical analysis of takanelite a new manganese dioxide mincral from Nomura mine, Ehime Prefecture gave; MnO270.39, MnO 13.06, MgO 0.22, CaO 2.66, BaO none, Na2O 0.05, K2O 0.05, Fe2O3 1.34, Al2O3 1.70, TiO2 trace, SiO2 3.61, H2O(+) 4.92, H2O(-) 2.22, sum 100.22%. After deducting Al2O3, SiO2, Fe2O3, H2O(-) and a part of H2O(+) (present as halloysite, goethite and quartz), it corresponds to (Mn+20.89 Ca0.23 Mg0.03)1.15 Mn+43.94 O9.00 1.3H2O as O=9, or ideally (Mn+2, Ca) Mn4+4O9•nH2O with Mn+2〉Ca and n=1.3. This is the Mn+2 analogue of rancieite, (Ca, Mn+2) Mn+44O9•nH2O with Ca〉Mn+2 and n=3. Electron microprobe analyses of five different grains, using analysed rancieite, nsutite and todorokite as standards, gave Mn 60.5-62.3 and Ca 2.0-2.4, and Fe, Al and Si were not detected. These results validate the above analysis and deduction of impurities. Analyses of some other materials suggest the possible existence of a continuous solid solution series between rancieite and this mineral. X-ray powder data are very similar to those of rancieite by Sorem and Gunn (1967) and by Richmond, Fleischer and Mrose (1969), and includes the strongest lines 7.57 (100) (1010), 4.43 (10b) (0002, 1120), 3.76 (25) (2020), 2.462 (15) (1123), 2.349 (20) (2023), 2.065 (10) (2133), 1.754 (7) (2243, 1015), 1.420 (17) (5052, 4260, 1126). The indexing is based on the hexagonal cell with a0=8.68Å, c0=9.00Å, Z=3. Colour steel gray to black, luster submetalic to dull, streak brownish black, sp. gr. 3.41 (measured on impure material); 3.78 (calculated). Cleavage not observed. Vickers' hardness (load 100g) 480kg/mm2(average). In reflected light, yellowish gray, reflection pleochroism weak with yellowish white to yellowish light gray, anisotropism moderate with polarization colour of yellowish gray to light brownish gray. Etch reactions: HCI (conc.), HNO3(conc.) and H2SO4 (conc.) tarnish slightly grayish brown, H2SO4 (conc. ) +H2O2 (20%) and SnCl2 (sat.) quickly stain black. The mineral occurs as irregular-shaped nodules, 1-15cm across, composed of a microscopic intergorwth with a small quantity of braunite, halloysite, goethite and quartz, in the oxidation zone of the braunite-rhodochrosite-caryopilite bedded deposit at the Nomura mine, Ehime Prefecture, Japan, in low grade metamorphosed cherts of Permian age. The name is for the late Dr. Katsutoshi Takane (1899-1945), the former Professor of Mineralogy, Tohoku University, Sendai, Japan. Type material is preserved at Tohoku University. The mineral and name were approved before publication by the Commission on New Meinerals and Mineral Names, IMA.

著者

南部 松夫 伊藤 建三

出版者

東北大學選鉱製錬研究所

雑誌

東北大學選鑛製錬研究所彙報 = Bulletin of the Research Institute of Mineral Dressing and Metallurgy, Tohoku University (ISSN:0040876X)

巻号頁・発行日

vol.16, no.1, pp.1-8, 1960-08-25

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The crystallization process of poorly crystallized ferric oxide formed by the dehydration of three α-type limonites obtained from different localities was studied by means of X-ray powder method. The results are as follows : 1) α-type limonite changes into a mixture of poorly crystallized hematite and amorphous ferric oxide by its thermal decomposition in the temperature range 390-405℃. These two heated products arise from crystalline goethite and amorphous ferric oxide hydrate contained respectively in original limonite. 2) Variations in the degree of crystallization of hematite changed from limonite by heating depend on the difference in the crystallinity of original goethite. 3) At low temperature from 350 to 550℃, the transformation of amorphous ferric oxide into hematite crystallite is predominent, compared with the growth of hematite crystallite. 4) The hematite crystallite formed at low temperature has a tendency of the two dimensional lattice up to about 750℃, and then grows gradually with rising temperature. 5) The crystallization process of poorly crystallized hematite and amorphous ferric oxide formed by thermal dehydration of α-type limonite may be shown as follows : [numerical formula]

著者

南部松夫著

出版者

宮城県商工労働部中小企業課

巻号頁・発行日

1972

著者

南部松夫編

出版者

福島県企画開発部開発課

巻号頁・発行日

1969

著者

南部 松夫

出版者

Japan Association of Mineralogical Sciences

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.59, no.4, pp.143-151, 1968-04-05 (Released:2008-08-07)

参考文献数

14

被引用文献数

5 7

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The new mineral akaganeite is beta-ferric oxyhydroxide from the weathered outcrop of the Akagane pyrometasomatic copper-iron deposit in Carboniferous green rock, Iwate Prefecture, Japan. The mineral is the supergene oxidation product of massive pyrrhotite and intimately associated with goethite, melantilite and two kinds of ferric sulfates. The mineral occurs in powdery aggregates of very fine orange to brownish-yellow crystals, elongated [001] and flattened (100) up to 0.3×0.03μ in size under the electron microscope. Two chemical analyses carried out in 1956 and 1959, respectively: Fe2O3 78.23, 80.98; FeO 0.82, 0.23; SiO2 3.10, 3, 57; A12O3 1.21, 1.40; Na2O 0.62, 0.82; K2O 0.19, 0.29; H2O+ 10.20, 9.71; H2O- 4.96, 2.55, sum 99.33, 99.55%. These data correspond closely to FeOOH. Chlorine was detected qualitatively, but material was in sufficient for a quantitative analysis. X-ray powder data are indexed on a tetragonal cell with a=10.50, c=3.03A. The strongest lines are 7.45 (98) (110), 5.31 (48) (200), 3.71 (21) (220), 3.34 (100) (310), 2.361 (33) (400), 2.553 (95) (211), 2.340 (8) (420), 2.300 (43) (301), 2.103 (31) (321), 1.954 ((39) (411), 1.750 (42) (600), 1.720 (12) (501, 431), 1.646 (52) (521), 1.520 (21) (002), 1.456 (28) (640), 1.441 (30d) (1.438), 1.381 (40d) (730, 312). These data agree very closely with the data obtained by Macky (1960), who showed the synthetic β-FeOOH is tetragonal, 14/m, a=10.48, c=3.023A. A DTA curve showed a slight endothermal reaction at about 300°C and a marked exothermal peak at 375°C. The mineral loss 11% in weight to 350°C, nearly all between 250 and 350°C. The name is for the mine. The mineral and name were aproved before publication by the Commission on New Minerals and Mineral Names, IMA. Two short communications on akaganeite have been described in Japanese by the present author (1957, 1960).