【摘要】 Fe－Ti氧化物矿物产于新疆阿尔泰伟晶岩中．与之共生的有铌-钽铁矿、细晶石、锆石、白云母、长石等。Fe－Ti氧化物是不规则粒状，黑褐色．条痕浅褐红色．金属光泽，无解理，硬度5．5～6．0．比重5.30～5．50。在反光镜下矿物的反射色为灰白色，反射多色性弱，在MPV－3型裂隙光度计上其反射率为27．37～22．65（400～700nm）。化学分析结果是：Fe2O362．23，MgO0．22．Mno1．24．FeO13．98，TiO217．96，SiO23．87，CaO0．20，总计9970．扣除杂质后：Fe2O364．87，MgO0．24．MnO1．29．FeO14．58．TiO218．73，总计99．70，其化学式为FeFeTiO9。矿物的强X射线值：2．72（10，014）．2．52（10．110）．1．85（8．115），1．70（9，008）．1．457（8，027），三方晶系a=0．504，c=1．355nm．Z=2．空间群P63／m（？）。更多还原

【Abstract】 The Fe-Ti oxide mineral was discovered in a pegmatite mine, Altay, Xinjiang, China, in association with columbite tantalite, microlite, zircon,muscovite, feldspar and so on. It is called tietaiyangite. The Fe-Ti oxide mineral (tietaiyangite) is irregular in grain size, dark brown in colour, and red in streak. Metallic luster, no cleavage, Mob’s 5. 5-6. 0, specific gravity 5.30 5. 50. Under the reflected light microscope the mineral reflection colour is gray-white with very poor reflection pleochroism. The reflectivity data range from 27. 37-22. 65 (400-700nm) (MPV3 type). Its chemical composition is given as follows: Fe2O3 62. 23, MgO 0. 22, MnO 1. 24, FeO 13. 98, TiO2 17. 96, SiO2 3. 87, CaO 0. 20. ∑99. 70. Its chemical formula: FeFeTiO9. The strongest X-ray lines: 2. 72(10,014), 2. 52(10, 110), 1. 85(8. 115), 1. 70(9,008), 1. 457(8,027). Trigonal system. a=0. 504nm, c=1. 355nm, Z= 2, S. G. C=P63/m (? ). The reflective and Mossbauer curves are given in this paper.更多还原