红河石Ca_(18)(□,Ca)_2Fe~(2+)Al_4(Fe~(3+),Mg,Al)_8(□,B)_4BSi_(18)O_(69)(O,OH)_9——符山石族新矿物
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摘要
作为符山石族矿物的新成员,红河石(Hongheite,IMA 2017-027新矿物),Ca18(,Ca)2Fe2+Al4(Fe3+,Mg,Al)8(,B)4BSi18O69(O,OH)9发现于个旧世界级Sn-多金属矿田东北缘、与马拉格Sn矿床毗邻的北沙冲花岗岩(77.43Ma)内矽卡岩中。红河石常呈横径达4~25mm的放射状针-柱状集合体产出。当位于晶洞中时,红河石则呈发育良好的自形柱状晶体(0.5~4.0mm长,0.3~1.0mm宽)产出。与红河石共生的矿物见有赛黄晶、萤石、斧石-(Fe)、硅硼钙石、枪晶石、硼锡钙石、石英和羟鱼眼石-(K)等。红河石为墨绿色,条痕浅灰绿色,玻璃光泽,性脆,断口不规则。主要的晶面是:{100}、{110}、{101}和{001}。红河石的显微硬度:988.3N/mm2,相当于摩氏硬度6~7。其实测密度与计算密度分别是3.446g/cm3和3.423g/cm3。红河石一轴正晶,No=1.720(2),Ne=1.725(2);多色性弱。红河石的化学成分:SiO235.85%;TiO20.01%;Al2O311.00%;Fe2O37.92%;FeO2.14%;CaO 33.57%;MnO 0.42%;MgO 3.48%;B2O32.82%;Cr2O30.01%;Na2O 0.01%;F 0.40%(F≡O-0.17);Cl 0.14%(Cl≡O-0.03);H2O 0.75%,总量98.32%。依据晶体结构精测和Si在单位分子式中的原子数(即Si=18 apfu),计算和书写的红河石简化晶体化学式:Ca18(,Ca)2Fe2+Al4(Fe3+,Mg,Al)8(,B)4BSi18O69(O,OH)9。其三条最强粉晶线[d(?)(I/I0)(hkl)]为:2.9289(47)(004),2.7661(100)(342)和2.6079(68)(243)。红河石属四方晶系,空间群为P4/nnc,晶胞参数:a=15.667(3)?,c=11.725(1)?,V=2878(1)?3,Z=2。红河石晶体结构精测的R因子为0.063。红河石殊异于为已知的符山石族矿物种,在于其X(4)位以空位()为主、Y(3)位以Fe3+居优和T(2)位被B所占。顺便对符山石族矿物晶体-化学式的计算与书写予以讨论并提出建议。
Hongheite(IMA 2017-027),Ca_(18)(□,Ca)_2Fe~(2+)Al_4(Fe~(3+),Mg,Al)_8(□,B)_4BSi_(18)O_(69)(O,OH)_9 is a new menber of vesuvianite-group minerals found in the endoskarn of the Baishanchong granite(77.43 Ma)that is adjacent to the Malage skarn Sn deposit,located at the northeast border of the world-class Gejiu tin polymetallic ore-field,Yunnan Province,southwest China.It occurs mostly as radiating acicular to prismatic aggregates 4 to 25 mm in diameter.When the mineral occurs in vugs,their well-formed,euhedral and prismatic crystals are 0.5 to 4.0 mm long and 0.3 to 1.0 mm thick,respectively.Associated minerals include danburite,fluorite,axinite-(Fe),datolite,cuspidine,nordenski9 ldine,quartz and hydroxylapophyllite-(K)etc.Hongheite exhibits a dark green colour with a pale greyish green streak and a vitreous lustre.The mineral is translucent and brittle in tenacity,and has irregular fracture.Dominant crystal forms are {100},{110},{101}and {001}.The microhardness is 988.3 N/mm2,equivalent to Mohs hardness 6～7.The specific gravitiy is Dmeas=3.446 g/cm3 and Dcalc=3.423 g/cm3 respectively.The mineral is optically uniaxial(+)withω=1.720(2),ε=1.725(2)(inwhite light).Its pleochroism is weak.The chemical composition is:SiO235.85%;TiO20.01%;Al2 O3 11.00%;Fe2 O3 7.92%;FeO2.14%;CaO 33.57%;MnO 0.42%;MgO 3.48%;B2O3 2.82%;Cr2 O3 0.01%;Na2O 0.01%;F0.40%;Cl 0.14%;(Cl,F≡O-0.20);H2 O 0.75%total 98.32%.On the basis of crystal refinement and Si=18 apfu,the crystal-chemical formula of hongheite is Ca_(18)(□,Ca)_2Fe~(2+)Al_4(Fe~(3+),Mg,Al)_8(□,B)_4BSi_(18)O_(69)(O,OH)_9.The three strongest powder X-ray diffraction lines[din?(I/I0)(hkl)]are:2.9289(47)(004),2.7661(100)(342)and 2.6079(68)(243).The mineral is tetragonal,space group P4/nnc,unit-cell parameters a=15.667(3)?,c=11.725(1)?,V=2878(1)?3,Z=2.The crystal structure has been refined to R=0.063.Hongheite is defined as a new member of the vesuvianite group with Fe3+and B as a dominant cation at the Y(3)and T(2)site separately.By the way,the paper discusses and proposes to revise the current crystal-chemical formula of the vesuvianite-group minerals calculation and writing.
Hongheite(IMA 2017-027),Ca_(18)(□,Ca)_2Fe~(2+)Al_4(Fe~(3+),Mg,Al)_8(□,B)_4BSi_(18)O_(69)(O,OH)_9 is a new menber of vesuvianite-group minerals found in the endoskarn of the Baishanchong granite(77.43 Ma)that is adjacent to the Malage skarn Sn deposit,located at the northeast border of the world-class Gejiu tin polymetallic ore-field,Yunnan Province,southwest China.It occurs mostly as radiating acicular to prismatic aggregates 4 to 25 mm in diameter.When the mineral occurs in vugs,their well-formed,euhedral and prismatic crystals are 0.5 to 4.0 mm long and 0.3 to 1.0 mm thick,respectively.Associated minerals include danburite,fluorite,axinite-(Fe),datolite,cuspidine,nordenski9 ldine,quartz and hydroxylapophyllite-(K)etc.Hongheite exhibits a dark green colour with a pale greyish green streak and a vitreous lustre.The mineral is translucent and brittle in tenacity,and has irregular fracture.Dominant crystal forms are {100},{110},{101}and {001}.The microhardness is 988.3 N/mm2,equivalent to Mohs hardness 6～7.The specific gravitiy is Dmeas=3.446 g/cm3 and Dcalc=3.423 g/cm3 respectively.The mineral is optically uniaxial(+)withω=1.720(2),ε=1.725(2)(inwhite light).Its pleochroism is weak.The chemical composition is:SiO235.85%;TiO20.01%;Al2 O3 11.00%;Fe2 O3 7.92%;FeO2.14%;CaO 33.57%;MnO 0.42%;MgO 3.48%;B2O3 2.82%;Cr2 O3 0.01%;Na2O 0.01%;F0.40%;Cl 0.14%;(Cl,F≡O-0.20);H2 O 0.75%total 98.32%.On the basis of crystal refinement and Si=18 apfu,the crystal-chemical formula of hongheite is Ca_(18)(□,Ca)_2Fe~(2+)Al_4(Fe~(3+),Mg,Al)_8(□,B)_4BSi_(18)O_(69)(O,OH)_9.The three strongest powder X-ray diffraction lines[din?(I/I0)(hkl)]are:2.9289(47)(004),2.7661(100)(342)and 2.6079(68)(243).The mineral is tetragonal,space group P4/nnc,unit-cell parameters a=15.667(3)?,c=11.725(1)?,V=2878(1)?3,Z=2.The crystal structure has been refined to R=0.063.Hongheite is defined as a new member of the vesuvianite group with Fe3+and B as a dominant cation at the Y(3)and T(2)site separately.By the way,the paper discusses and proposes to revise the current crystal-chemical formula of the vesuvianite-group minerals calculation and writing.
引文
Allen F M.1985.Structural and chemical variations in vesuvianite.PhD thesis of Harvard Univ.,Cambridge,Massachusetts(quoted in the paper of Groat et al.,1992).
Armbruster T,Gnos E.2000a.P4/nand P4nclong range ordering in low temperature vesuvianites.American Mineralogist,85:563~569.
Armbruster T,Gnos E.2000b.Tetrahedral vacancies and cation ordering in low-temperature Mn-bearing vesuvianites:Indication of hydrogarnet-like substitution.American Mineralogist,85:570~577.
Armbruster T,Gnos E,Dixon R,Gutzmer J,Hejny C,Dobelin N,Medenbach O.2002.Manganvesuvianite and tweddillite,two new Mn3+-silicate minerals from the Kalahari manganese fields,South Africa.Mineralogical Magazine,66:137~150.
Balassone G,Talla D,Beran A,Mormone A,Altomare A,Moliter A,Mondillo N,Saviano M,Petti C.2011.Vesuvianite from Somma-Vesuvius volcano(southern Italy):Chemical,X-ray diffraction and single crystal polarized FTIR investigation.Periodico di Mineralogia,80(3):369~384.
Bellatreccia F,Camara F,Ottolini L.2005.Wiluite from ariccia,Latium,Italy;Occurrence and crystal structure.Canadian Mineralogist,43:1457~146.
Britvin S N,Antonov A A,Krivovichev S V,Armbruster T,Burns P C,Chukanov N V.2003.Fluorvesuvianite,Ca19(Al,Mg,Fe2+)13[SiO4]10[Si2O7]4O(F,OH)9,a new mineral species from Pitkaranta,Karelia,Russian:Description and crystal structure.Canadian Mineralogist,41:1371~1380.
ChengYanbo,Mao Jingwen,Xie Guiqing,Chen Maohong,Yang Zongxi.2009.Zircon U-Pb dating of granites in Gejiu superlarge tin polymetallic orefield and its significance.Mineral Deposits,28(3):297~312(in Chinese with English abstract).
Chukanov(Чуканов)N V,Pekov I V,Zadov A E,Korovushkin VV,Ekimenkova I A,Rastsvetava R K,Khasanov V V.2003.Ikranite,(Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3(□,Zr)(□,Si)Si24O66(O,OH)6Cl.nH2O and raslakite Na15Ca3Fe2+3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH)-the new eudialyte group minerals from Lovozero massif,Kola Peninsula.ZVMO,Pt CXXXII(5):22~33(in Russian).
Coda A,Drlle Grusra A,Isetii G,Mazzi F.1970.On the crystal structure of vesuvianite.Atti Accad.Sci.Torino,105:63~84.
Galuskin E V,Galuskina I O,Sitarz M,Stadniccka K.2003.Sideficient,OH-substituted,boron-bearing vesuvianite from the Wiluy river,Yakutia,Russia.Can.Mineral.,41:833~842.
Elmi C,Brigatti M F,Pasquali L,Montecchi M,Laurora A,Malferrari D,Nannarone S.2011.High-temperature vesuvianite:crystal chemistry and surface considerations.Physics and Chemistry of Minerals,38:459~468.
Gnos E,Armbruster T.2006.Relationship among metamorphic grade,vesuvianite brod polytypism,and vesuvianite composition.American Mineralogist,91:862~870.
Groat L A,Hawthorne F C,Ercit T S.1992.The chemistry of vesuvianite.Canadian Mineralogist,30:19~48.
Groat L A,Hawthorne F C,Ercit T S.1994.Excess Y-group cations in the crystal structure of vesuvianite.Canadian Mineralogist,32:497~504.
Groat L A,Hawthorne F C,Lager G A,Schultz A J,Ercit T S.1996.X-ray and neutron crystal-structure refinements of a boron-bearing vesuvianite.Canadian Mineralogist,34:1059~1070.
Groat L A,Hawthorne F C,Ercit T S,Grice J D.1998.Wiluite Ca19(Al,Mg,Fe,Ti)13(B,A□)5Si18O68(O,OH)10,a new mineral species isostructural with vesuvianite,from the Sakha Republic,Russian Federation.Canadian Mineralogist,36:1301~1304.
Groat L A,Evans J,Cempirek J,McCammon C,Houzar S.2013.Fe-rich and As-bearing vesuvianite and wiluite from Kozlov,Czech Republic.American Mineralogist,98:1330~1337.
Hatert F,Burke E A J.2008.The IMA-CNMNC dominantconstituent rule revisited and extended.Canadian Mineralogist,46:717~728.
He Mingyue.2007.New English-Chinese Glossary of Mineral Species.Beijing:Geological Press,192~193.
Li Guowu,Shi Nicheng,Ma Zhesheng,Xiong Ming,Chen Rongxiu.2005.A new method for powder-like diffractograms of small single crystals using a SMART APEX CCD detector.Acta Mineralogica Sinica,25(1):9~14(in Chinese with English abstract).
Lin Xindou.1999.Magmatic-Hydrothermal Transitional Type Deposit.Wuhan:China University of Geosciences Press(in Chinese).
London D.1986.Magmatic-hydrothermal transition in the Tanco rare element pegmatite:Evidence from fluid inclusions and phaseequilibrium experiments.American Minrealogist,71:376~396.
Mandarino J A.1981.The Gladstone-dale relationship:part 4.The compatibility concept and its application.Canadian Mineralogist,19:441~450.
Nickel E H,Grice J D.1998.The IMA Commission on New Minerals and Mineral Names:Procedures and guidelines on mineral nomenclature.Canadian Mineralogist,36:913~926.
Panikorovskii T L,Shilovskikh V V,Avdontseva E Y,Zolotarev AA,Pekov I V,Britvin S N,Krivovichev S V.2017a.Cyprine,Ca19Cu2+(Al,Mg,Mn)12Si18O69(OH)9,a new vesuvianitegroup mineral from the Wessels mine,South Africa.European Journal of mineralogy,29:1~12.
Panikorovskii T L,Shilovskikh V V,Avdontseva E Y,Zolotarev AA,Karpenko V Y,Mazu A S,Yakovenchuk V N,Krivovichev S V,Pekov I V.2017b.Magnesiovesuvianite,Ca19 Mg(Al,Mg)12Si18O69(OH)9,a new vesuvianite-group mineral.Journal of Geosciences,62:25~36.
Panikorovskii T L,Chukanov,N V,Aksenov S M,Mazur A S,Avdontseva E Y,Shilovskikh V V,Krivovichev S V.2017c.Alumovesuvianite,Ca19Al(Al,Mg)12Si18O69(OH)9,a new vesuvianite-group member from the Jeffrey mine,asbestos,Estrie region,Québec,Canada.Mineralogy and Petrology,111(6):833~842.
Zhao Bin,Zhao Jinsong,Zhang Chongze,Zhu Chengming,Cai Enzhao.1993.The experimental evidence for magma genetic skarn.Chinese Science Bulletin,38(21):1986~1989(in Chinese).
Zhao Bin,Zhao Jinsong.2016.The main features of magmatic skarns and their formation mechanism.Ashese Journal of Engineering,2(1):22~65.
Zhao Yiming,Li Daxin,Jiang Chongjun.1990.F-B metasomatites and discovery of some rare metasomatic minerals in Gejiu tin deposit,Yunnan,China.Bulletin of the Chinese Academy of Geological Sciences,20:70~73(in Chinese).
程彦博,毛景文,谢桂青,陈懋弘,杨宗喜.2009.与云南个旧超大型锡矿床有关的花岗岩锆石UPb定年及意义.矿床地质,28(3):297~312.
何明跃.2007.新英汉空位种名称.北京:地质出版社,192~193.
李国武,施倪承,马喆生,熊明,陈荣秀.2005.CCD单晶衍射仪进行单晶德拜衍射.矿物学报,25(1):9~14.
林新多.1999.岩浆-热液过渡型矿床.武汉:中国地质大学出版社.
赵斌,赵劲松,张重泽,朱成明,蔡恩照.1993.岩浆成因矽卡岩的实验证据.科学通报,38(21):1986~1989.
赵一鸣,李大新,蒋崇俊.1990.云南个旧锡矿床的氟硼质交代岩及某些罕见交代矿物的发现.中国地质科学院院报,20:70~73.
Armbruster T,Gnos E.2000a.P4/nand P4nclong range ordering in low temperature vesuvianites.American Mineralogist,85:563~569.
Armbruster T,Gnos E.2000b.Tetrahedral vacancies and cation ordering in low-temperature Mn-bearing vesuvianites:Indication of hydrogarnet-like substitution.American Mineralogist,85:570~577.
Armbruster T,Gnos E,Dixon R,Gutzmer J,Hejny C,Dobelin N,Medenbach O.2002.Manganvesuvianite and tweddillite,two new Mn3+-silicate minerals from the Kalahari manganese fields,South Africa.Mineralogical Magazine,66:137~150.
Balassone G,Talla D,Beran A,Mormone A,Altomare A,Moliter A,Mondillo N,Saviano M,Petti C.2011.Vesuvianite from Somma-Vesuvius volcano(southern Italy):Chemical,X-ray diffraction and single crystal polarized FTIR investigation.Periodico di Mineralogia,80(3):369~384.
Bellatreccia F,Camara F,Ottolini L.2005.Wiluite from ariccia,Latium,Italy;Occurrence and crystal structure.Canadian Mineralogist,43:1457~146.
Britvin S N,Antonov A A,Krivovichev S V,Armbruster T,Burns P C,Chukanov N V.2003.Fluorvesuvianite,Ca19(Al,Mg,Fe2+)13[SiO4]10[Si2O7]4O(F,OH)9,a new mineral species from Pitkaranta,Karelia,Russian:Description and crystal structure.Canadian Mineralogist,41:1371~1380.
ChengYanbo,Mao Jingwen,Xie Guiqing,Chen Maohong,Yang Zongxi.2009.Zircon U-Pb dating of granites in Gejiu superlarge tin polymetallic orefield and its significance.Mineral Deposits,28(3):297~312(in Chinese with English abstract).
Chukanov(Чуканов)N V,Pekov I V,Zadov A E,Korovushkin VV,Ekimenkova I A,Rastsvetava R K,Khasanov V V.2003.Ikranite,(Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3(□,Zr)(□,Si)Si24O66(O,OH)6Cl.nH2O and raslakite Na15Ca3Fe2+3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH)-the new eudialyte group minerals from Lovozero massif,Kola Peninsula.ZVMO,Pt CXXXII(5):22~33(in Russian).
Coda A,Drlle Grusra A,Isetii G,Mazzi F.1970.On the crystal structure of vesuvianite.Atti Accad.Sci.Torino,105:63~84.
Galuskin E V,Galuskina I O,Sitarz M,Stadniccka K.2003.Sideficient,OH-substituted,boron-bearing vesuvianite from the Wiluy river,Yakutia,Russia.Can.Mineral.,41:833~842.
Elmi C,Brigatti M F,Pasquali L,Montecchi M,Laurora A,Malferrari D,Nannarone S.2011.High-temperature vesuvianite:crystal chemistry and surface considerations.Physics and Chemistry of Minerals,38:459~468.
Gnos E,Armbruster T.2006.Relationship among metamorphic grade,vesuvianite brod polytypism,and vesuvianite composition.American Mineralogist,91:862~870.
Groat L A,Hawthorne F C,Ercit T S.1992.The chemistry of vesuvianite.Canadian Mineralogist,30:19~48.
Groat L A,Hawthorne F C,Ercit T S.1994.Excess Y-group cations in the crystal structure of vesuvianite.Canadian Mineralogist,32:497~504.
Groat L A,Hawthorne F C,Lager G A,Schultz A J,Ercit T S.1996.X-ray and neutron crystal-structure refinements of a boron-bearing vesuvianite.Canadian Mineralogist,34:1059~1070.
Groat L A,Hawthorne F C,Ercit T S,Grice J D.1998.Wiluite Ca19(Al,Mg,Fe,Ti)13(B,A□)5Si18O68(O,OH)10,a new mineral species isostructural with vesuvianite,from the Sakha Republic,Russian Federation.Canadian Mineralogist,36:1301~1304.
Groat L A,Evans J,Cempirek J,McCammon C,Houzar S.2013.Fe-rich and As-bearing vesuvianite and wiluite from Kozlov,Czech Republic.American Mineralogist,98:1330~1337.
Hatert F,Burke E A J.2008.The IMA-CNMNC dominantconstituent rule revisited and extended.Canadian Mineralogist,46:717~728.
He Mingyue.2007.New English-Chinese Glossary of Mineral Species.Beijing:Geological Press,192~193.
Li Guowu,Shi Nicheng,Ma Zhesheng,Xiong Ming,Chen Rongxiu.2005.A new method for powder-like diffractograms of small single crystals using a SMART APEX CCD detector.Acta Mineralogica Sinica,25(1):9~14(in Chinese with English abstract).
Lin Xindou.1999.Magmatic-Hydrothermal Transitional Type Deposit.Wuhan:China University of Geosciences Press(in Chinese).
London D.1986.Magmatic-hydrothermal transition in the Tanco rare element pegmatite:Evidence from fluid inclusions and phaseequilibrium experiments.American Minrealogist,71:376~396.
Mandarino J A.1981.The Gladstone-dale relationship:part 4.The compatibility concept and its application.Canadian Mineralogist,19:441~450.
Nickel E H,Grice J D.1998.The IMA Commission on New Minerals and Mineral Names:Procedures and guidelines on mineral nomenclature.Canadian Mineralogist,36:913~926.
Panikorovskii T L,Shilovskikh V V,Avdontseva E Y,Zolotarev AA,Pekov I V,Britvin S N,Krivovichev S V.2017a.Cyprine,Ca19Cu2+(Al,Mg,Mn)12Si18O69(OH)9,a new vesuvianitegroup mineral from the Wessels mine,South Africa.European Journal of mineralogy,29:1~12.
Panikorovskii T L,Shilovskikh V V,Avdontseva E Y,Zolotarev AA,Karpenko V Y,Mazu A S,Yakovenchuk V N,Krivovichev S V,Pekov I V.2017b.Magnesiovesuvianite,Ca19 Mg(Al,Mg)12Si18O69(OH)9,a new vesuvianite-group mineral.Journal of Geosciences,62:25~36.
Panikorovskii T L,Chukanov,N V,Aksenov S M,Mazur A S,Avdontseva E Y,Shilovskikh V V,Krivovichev S V.2017c.Alumovesuvianite,Ca19Al(Al,Mg)12Si18O69(OH)9,a new vesuvianite-group member from the Jeffrey mine,asbestos,Estrie region,Québec,Canada.Mineralogy and Petrology,111(6):833~842.
Zhao Bin,Zhao Jinsong,Zhang Chongze,Zhu Chengming,Cai Enzhao.1993.The experimental evidence for magma genetic skarn.Chinese Science Bulletin,38(21):1986~1989(in Chinese).
Zhao Bin,Zhao Jinsong.2016.The main features of magmatic skarns and their formation mechanism.Ashese Journal of Engineering,2(1):22~65.
Zhao Yiming,Li Daxin,Jiang Chongjun.1990.F-B metasomatites and discovery of some rare metasomatic minerals in Gejiu tin deposit,Yunnan,China.Bulletin of the Chinese Academy of Geological Sciences,20:70~73(in Chinese).
程彦博,毛景文,谢桂青,陈懋弘,杨宗喜.2009.与云南个旧超大型锡矿床有关的花岗岩锆石UPb定年及意义.矿床地质,28(3):297~312.
何明跃.2007.新英汉空位种名称.北京:地质出版社,192~193.
李国武,施倪承,马喆生,熊明,陈荣秀.2005.CCD单晶衍射仪进行单晶德拜衍射.矿物学报,25(1):9~14.
林新多.1999.岩浆-热液过渡型矿床.武汉:中国地质大学出版社.
赵斌,赵劲松,张重泽,朱成明,蔡恩照.1993.岩浆成因矽卡岩的实验证据.科学通报,38(21):1986~1989.
赵一鸣,李大新,蒋崇俊.1990.云南个旧锡矿床的氟硼质交代岩及某些罕见交代矿物的发现.中国地质科学院院报,20:70~73.