 | | Journal (article/letter/editorial) | | Dolomitic, Rhodochrosite, and Calcareous Marbles of Japan S. M. Aleksandrov† and M. A. Troneva Vernadsky Institute...endogenous borates from hypabyssal skarn deposits of Japan (Honshu Island) that were formed after dolomitic...calciphyres at the Neichi, Kaso, and Rito mines, and are developed in calcitic marbles at the Fuka mine. Depending...takedaite, sibirskite, Mg, Mn, and Caskarns, Japan DOI: 10.1134/S001670291211002X INTRODUCTION The...endogenous borate mineral ization of Honshu Island, Japan are localized in the outer contact aureoles of the |  | | Report (issue) | | (2) 36.54 63.46 Total 100.60 100.00 (1) Hol Kol mine, North Korea; forsterite and spinel impurities....clinohumite, ludwigite, spinel, fluoborite, szaibélyite (Hol Kol mine, North Korea); ludwigite, suanite...szaibélyite, warwickite (Neichi mine, Japan). Distribution: From the Hol Kol Au–Cu mine, about 75 km southeast...Suan Co., North Korea. In the Neichi mine, Miyako, Iwate Prefecture, Japan. At Qiliping, Hunan Province...From Băiţa (Rézbánya), Romania. In the Brosso mine, northwest of Ivrea, Torino, Italy. In the USA, |  | | Report (issue) | | 1228(9) c = 9.917(4) X-ray Powder Pattern: Hol Kol mine, North Korea. 2.557 (100), 2.010 (60), 2.823 (50)...(2) 46.34 53.66 Total 99.93 100.00 (1) Hol Kol mine, North Korea; after deduction of szaibélite, corresponds...skarn (Hol Kol mine, North Korea). Association: calcite. Kotoite, sakhaite, ludwigite, szaibélyite,...apatite, spinel, Distribution: From the Hol Kol Au–Cu mine, about 75 km southeast of Pyongyang, Suan Co., North...elsewhere in Romania. At Kami-neichi, Miyako, Iwate Prefecture, Japan. Name: For Suan Co., the North |  | | Journal (article/letter/editorial) | | Republic of Korea, People’s Republic of China, Japan, Tajikistan, Romania, France, Scotland, and the...extensively replaced by Mg–Fe borates of the ludwigite and, then, szaibelyite series. The initial suanite...Mg–Fe borates of the ludwigite series [1, 2]. Suanite is transformed to ludwigite containing 2+ more than...degree of replacement of magnesium borates by ludwigite and magnesioludwigite varies from partial in kotoite...completely replaced by ludwigite, forsterite and pyroxene skarns with ludwigite, and plagioclase–pyroxene |  | | Journal (article/letter/editorial) | | ScienceMuseum 3-23-1 Hyakunin-cho, Shinjuku, Tokyo 160, Japan Takeo Watanabe, life fellow of the Mineralogical...found in a dolomite-granite contact in Iwat6 Prefecture,Japan, by him; in 1963, the Mn analogueof kotoite... was describedby this marvelousprophet him- of Japan,and Presidentof the MineralogicalSocietyof self...Prize Akita University from l97l to 1976. of the Japan Academy was conferred on him to reward His energetic...him one of the most sound geologists Geologistsof Japan, President of the Geological Society ever seen. |  | | Journal (article/letter/editorial) | | Hulsite from Sengendera skarn deposit, Miyazaki, Japan 大越 皆川 濱根 悠数(Yukikazu OGOSHI) 鉄雄(Tetsuo MINAKAWA)...content of vonsenite, an Fe-borate, from Sengendera mine is 1.40 wt. Hulsite domain within vonsenite crystals...Science, Ehime University, Matsuyama 7908577, Japan E-mail: hitotoribashi1584＠ yahoo.co.jp The Institute...2778581, Japan 62 大越 Table 1. 悠数・皆川 鉄雄・濱根 大輔 Minerals in the hulsite and ludwigite groups 軒... (1966): Mineral formation conditions of the ludwigite-vonsenite series according to experimental data |  | | Journal (article/letter/editorial) | | kotoite-bearing skarns are iron-rich, containing abundant ludwigite and magnetite. The minerals most closely associated...magnesite), dolomite, other magnesian borates (i.e., ludwigite, suanite, and, at Baiţa Bihor, fluoborite) and...kotoite-bearing skarns from Romania. Mineral species ludwigite kotoite suanite fluoborite szaibelyite calcite...samples used for this study were collected from the mine dumps. No major textural and mineralogical variation...from this occurrence is not surprising, since ludwigite and magnetite are abundant in the mineral association |  | | Journal (article/letter/editorial) | | much as 4.6 wt % FeO (f = 4.3 at %), as in the ludwigite-bearing marbles at Potter Lake, Fresno County...97 3.63 – 0.07 0.00 0.03 – 99.97 15 Neichi, Japan 0.39 35.73 60.80 1.91 0.39 0.14 0.06...by Mg–Fe borates. These minerals belong to the ludwigite–vonsenite series of the orthorhombic system and...that the Sn concentrations in borates of the ludwigite–vonsenite and hulsite–paigeite series are controlled...deposit is made up of szaibelyitized suanite and ludwigite ores surrounded by kotoite calciphyres with disseminated |  | | Journal (article/letter/editorial) | | interactions due to the occurrence of borate minerals (ludwigite, kotoite, and szaibelyite) in skarn deposits around...magnetite together with minor calcite and quartz. Ludwigite [(Mg, Fe2+)2Fe3+BO5] usually forms a border zone...enrichments are observed in sills associated with ludwigite-bearing skarns. BORON DISTRIBUTION IN ROCKS AND...sample; quartz hosts none. An adjacent layer of ludwigite skarn indicates that B-rich fluids were channeled...associated with other metasomatic minerals (e.g., ludwigite and spinel). Sample 92A-32 contains metamorphic |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | California. Akira Kato: National Science Museum, Tokyo, Japan. Petr Korbel: Dept. of Mineralogy, National Museum...including Siberia ae SS shes] TM REED eS SL China and Japan 10. India 11. South east Asia 12. Middle East 13...Crytal Structure Communications Chemical Society of Japan Bulletin Colorado School of Mines Quarterly Crystal...International (English translation) Geochemical Journal (Japan) Geokhimiya Mineralogiya & Petrologiya Geophysical...Transactions Journal of the Clay Science Sciety of Japan Journal of the Chinese University Geosciences Journal |
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