Hanjiangite, a new barium-vanadium phyllosilicate carbonate mineral from the Shiti barium deposit in the Dabashan region, China

doi:10.2138/am.2012.3781

	Hanjiangite, a new barium-vanadium phyllosilicate carbonate mineral from the Shiti barium deposit in the Dabashan region, China
	Liu, Jiajun 1,2,3; Li, Guowu 1; Ma, Qian 4; Wu, Shenghua 1,3; Liu, Zhenjiang 1,3; Su, Shangguo 1,3; Xiong, Ming 1; Yu, Xiaoyan 5
刊名	AMERICAN MINERALOGIST
	2012-02-01
卷号	97 期号:2-3 页码:281-290
关键词	New mineral hanjiangite electron-microprobe data single-crystal X-ray diffraction crystal structure Shiti barium deposit Ankang County China
ISSN号	0003-004X
DOI	10.2138/am.2012.3781
文献子类	Article
英文摘要	Hanjiangite, ideal formula Ba2Ca(V3+Al)[Si3AlO10(OH)(2)]F(CO3)(2), is a new mineral found in the Shin barium deposit in the Dabashan region, China. Hanjiangite was collected from lenticular witherite ore bodies and witherite-barite-quartz veins cutting carbonaceous slates. It is found as disseminations in both settings. It occurs as thin, euhedral, tetragonal, tabular crystals, and anhedral grains. Grain size commonly varies from 0.05 to 4 mm and occasionally reaches 15 mm. It is yellow-green or dark green, with one well-developed or perfect cleavage on {001}. Other physical properties are: brittle, transparent to translucent, nonfluorescent, vitreous luster, greenish white streak, hardness 4 in the Molls scale, splintery fracture, and a measured density of 3.69 g/cm(3). Hanjiangite is biaxial (-), alpha = 1.615, beta = 1.655, gamma = 1.700 (589 nm), and displays strong pleochroism from pale yellow-green to dark green. It is monoclinic, with unit-cell parameters refined from single-crystal X-ray diffraction: a = 5.2050(12), b = 9.033(2), c = 32.077(8) angstrom, beta = 93.49(8)degrees, V = 1505.4(8) angstrom(3), Z = 4, space group C2. The strongest seven lines of the X-ray powder-diffraction pattern [din angstrom(I)(hkl)] are: 15.866(7)(002), 5.340(91)(006), 4.010(10)((1) over bar 14), 3.209(23) (027), 2.676(100) ((1) over bar 110), 2.294(29)((1) over bar 37), and 2.008(11)((2) over bar 28). Chemical analysis by a combination of electron microprobe, HF combustion, IR absorption, thermogravimetric analysis (TGA) and crystal-structure refinement gives SiO2 19.64, TiO2 1.12, Al2O3 11.19, MgO 0.54, CaO 4.91, BaO 34.89, V2O3 9.93, Cr2O3 1.75, Na2O 0.20, K2O 0.06, MnO 0.01, FeO 0.02, NiO 0.01, SrO 0.34, Y2O3 0.85, La2O3 0.14, Nd2O3 0.26, F 1.80, Cl 0.04, CO2 10.37, H2O 1.30, F=O-0.76, Cl=O-0.01, sum 98.60 wt%. The empirical formula is (Ba1.98Na0.06K0.01)(Sigma 2.05)(Ca0.76Mg0.12Y0.06Sr0.03La0.01Nd0.01)(Sigma 0.99) (V1.15Al0.75Cr0.20Ti0.12)(Sigma 2.22)[(Si2.84Al1.16)(Sigma 4.00)O-10][(OH)(1.25)O-0.77](Sigma 2.02)(F0.82Cl0.01)(Sigma 0.83)(CO3)(2.05) based on 19 anions per formula unit. A single-crystal X-ray structure determination (sample 2005st-17) was carried out with a Smart APEX CCD system using MoK alpha (lambda = 0.71073 angstrom) radiation. The structure was solved using direct methods, and refined with the SHELXTL PC (Bruker AXS Inc.) package. Anisotropic refinement using all measured independent data and reflections with I > 2 sigma(I) resulted in an R-1 factor of 0.08 and wR(2) of 0.20. The crystal structure is composed of alternating T-O-T and Ba2Ca(CO3)(2)F layers. The Ba2Ca(CO3)(2)F layer occurs between the T-O-T layers. The T site contains both Si and Al, and the O site both V3+ and Al. The interlayer hosts not only Ba (like in chernykhite) but also Ca atoms and (CO3) groups.
WOS关键词	CALIFORNIA ; COUNTY ; SURITE ; ANALOG
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	MINERALOGICAL SOC AMER
WOS记录号	WOS:000300209500004
资助机构	Major Basic Research Program of People's Republic of China(2009CB421003 ; Major Basic Research Program of People's Republic of China(2009CB421003 ; National Natural Science Foundation of China(41173062 ; National Natural Science Foundation of China(41173062 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Ministry of Education ; Ministry of Education ; State Administration of Foreign Experts Affairs, China(B07011) ; State Administration of Foreign Experts Affairs, China(B07011) ; 2009CB421005) ; 2009CB421005) ; 40573032) ; 40573032) ; Major Basic Research Program of People's Republic of China(2009CB421003 ; Major Basic Research Program of People's Republic of China(2009CB421003 ; National Natural Science Foundation of China(41173062 ; National Natural Science Foundation of China(41173062 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Ministry of Education ; Ministry of Education ; State Administration of Foreign Experts Affairs, China(B07011) ; State Administration of Foreign Experts Affairs, China(B07011) ; 2009CB421005) ; 2009CB421005) ; 40573032) ; 40573032) ; Major Basic Research Program of People's Republic of China(2009CB421003 ; Major Basic Research Program of People's Republic of China(2009CB421003 ; National Natural Science Foundation of China(41173062 ; National Natural Science Foundation of China(41173062 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Ministry of Education ; Ministry of Education ; State Administration of Foreign Experts Affairs, China(B07011) ; State Administration of Foreign Experts Affairs, China(B07011) ; 2009CB421005) ; 2009CB421005) ; 40573032) ; 40573032) ; Major Basic Research Program of People's Republic of China(2009CB421003 ; Major Basic Research Program of People's Republic of China(2009CB421003 ; National Natural Science Foundation of China(41173062 ; National Natural Science Foundation of China(41173062 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Program for Changjiang Scholars and Innovative Research Team in University(IRT0755) ; Ministry of Education ; Ministry of Education ; State Administration of Foreign Experts Affairs, China(B07011) ; State Administration of Foreign Experts Affairs, China(B07011) ; 2009CB421005) ; 2009CB421005) ; 40573032) ; 40573032)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84514]
专题	中国科学院地质与地球物理研究所
通讯作者	Liu, Jiajun
作者单位	1.China Univ Geosci Beijing, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China 3.China Univ Geosci Beijing, Sch Earth Earth Sci & Resources, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.China Univ Geosci Beijing, Sch Gemol, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jiajun,Li, Guowu,Ma, Qian,et al. Hanjiangite, a new barium-vanadium phyllosilicate carbonate mineral from the Shiti barium deposit in the Dabashan region, China[J]. AMERICAN MINERALOGIST,2012,97(2-3):281-290.
APA	Liu, Jiajun.,Li, Guowu.,Ma, Qian.,Wu, Shenghua.,Liu, Zhenjiang.,...&Yu, Xiaoyan.(2012).Hanjiangite, a new barium-vanadium phyllosilicate carbonate mineral from the Shiti barium deposit in the Dabashan region, China.AMERICAN MINERALOGIST,97(2-3),281-290.
MLA	Liu, Jiajun,et al."Hanjiangite, a new barium-vanadium phyllosilicate carbonate mineral from the Shiti barium deposit in the Dabashan region, China".AMERICAN MINERALOGIST 97.2-3(2012):281-290.