Strontiopyrochlore Mineral Data (original) (raw)

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General Strontiopyrochlore Information
Help on Chemical Formula: Chemical Formula: Sr2Nb2(O,OH)7
Help on Composition: Composition: Molecular Weight = 475.06 gm
Strontium 36.89 % Sr 43.62 % SrO
Niobium 39.11 % Nb 55.95 % Nb2O5
Hydrogen 0.42 % H 3.79 % H2O
Oxygen 23.57 % O
______ ______
100.00 % 103.37 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr2Nb2O5(OH)2
Help on Environment: Environment: Dolomitic carbonatites.
Help on IMA Status: IMA Status: Not Approved IMA 1986
Help on Locality: Locality: Yenisei Ridge, Russa. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for its compostion of strontium and relationship to pyrochlore.
Strontiopyrochlore Image
Click Here for Larger Strontiopyrochlore Image in a New Browser Window Images: Click Here for Larger Strontiopyrochlore Image Strontiopyrochlore Comments: Creamy-white strontiopyrochlore pesudomorphous after twinned loparite? covered with brownish manganese oxide film. Location: Zircon point at the NE exocontact zone of the massif. Vavnbed Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.Scale: Crystal Size 8x9x9 mm. © Pavel M. Kartashov
Strontiopyrochlore Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 10.53, Z = 6; V = 1,167.58 Den(Calc)= 4.05
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Physical Properties of Strontiopyrochlore
Help on Color: Color: Light brown, Light yellow.
Help on Density: Density: 3.8
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: white
Optical Properties of Strontiopyrochlore
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.257 (Poor) - where the CI = (1-KPDmeas/KC)CI calc= -0.179 (Poor) - where the CI = (1-KPDcalc/KC)KPDcalc= 0.2667,KPDmeas= 0.2842,KC= 0.2261Ncalc = 1.86 - 1.92
Help on Optical Data: Optical Data: Isotropic, n=2.08.
Calculated Properties of Strontiopyrochlore
Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.68 gm/ccnote: Specific Gravity of Strontiopyrochlore =4.05 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEStrontiopyrochlore = 103.64 barns/electronU=PEStrontiopyrochlore x rElectron Density= 381.70 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)Strontiopyrochlore is Not Radioactive
Strontiopyrochlore Classification
Help on Dana Class: Dana Class: 08.02.01.08 (08)Multiple Oxides with Nb, Ta, and Ti
(08.02)where (A)2 (B2O6) (O,OH,F)
(08.02.01)Pyrochlore Group (Pyrochlore Subgroup; Nb>Ta;(Nb+Ta)>2(Ti)
08.02.01.01 Pyrochlore (Na,Ca)2Nb2O6(OH,F) F d3m 4/m 3 2/m
08.02.01.02 Kalipyrochlore (H2O,Sr)(Nb,Ti)(O,OH)6•(H2O,K) F d3m 4/m 3 2/m
08.02.01.03 Bariopyrochlore (Ba,Sr)(Nb,Ti)2(O,OH)7 F d3m 4/m 3 2/m
08.02.01.04 Yttropyrochlore-(Y) (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 F d3m 2/m 3
08.02.01.05 Ceriopyrochlore-(Ce) (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
08.02.01.06 Plumbopyrochlore (Pb,Y,U,Ca)2-xNb2O6(OH) F d3m 4/m 3 2/m
08.02.01.07 Uranpyrochlore (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
08.02.01.08 Strontiopyrochlore* Sr2Nb2(O,OH)7 F d3m 4/m 3 2/m
08.02.01.09 Bismutopyrochlore! (Bi,U,Ca,Pb)1x(Nb,Ta)2O6(OH)•n(H2O) F d3m 4/m 3 2/m
Help on Strunz Class: Strunz Class: 04.DH.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
04.D - Metal:Oxygen = 1:2 and similar
04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra
04.DH.15 Alumotungstite (W,Al)(O,OH)3(?) Unk Cubic
04.DH.15 Betafite (Ca,U)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Ferritungstite (K,Ca,Na)(W,Fe)2(O,OH)6•(H2O) F d3m 4/m 3 2/m
04.DH.15 Cesstibtantite (Cs,Na)SbTa4O12 F d3m 4/m 3 2/m
04.DH.15 Bismutomicrolite (Bi,Ca)(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Ceriopyrochlore-(Ce) (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Bariopyrochlore (Ba,Sr)(Nb,Ti)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Bariomicrolite Ba(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Calciobetafite Ca2(Ti,Nb)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Jixianite Pb(W,Fe)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Plumbomicrolite (Pb,Ca,U)2Ta2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Kalipyrochlore (H2O,Sr)(Nb,Ti)(O,OH)6•(H2O,K) F d3m 4/m 3 2/m
04.DH.15 Plumbopyrochlore (Pb,Y,U,Ca)2-xNb2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Strontiopyrochlore* Sr2Nb2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Uranmicrolite (U,Ca)2(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Pyrochlore (Na,Ca)2Nb2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Microlite (Na,Ca)2Ta2O6(O,OH,F) F d3m 4/m 3 2/m
04.DH.15 Natrobistantite (Na,Cs)Bi(Ta,Nb,Sb)4O12 F d3m 4/m 3 2/m
04.DH.15 Plumbobetafite (Pb,U,Ca)(Ti,Nb)2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Stibiomicrolite (Sb,Ca,Na)2(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Stannomicrolite (Sn,Fe,Mn)(Ta,Nb,Sn)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Stibiobetafite (Sb,Ca)2(Ti,Nb,Ta)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Uranpyrochlore (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Bismutopyrochlore! (Bi,U,Ca,Pb)1x(Nb,Ta)2O6(OH)•n(H2O) F d3m 4/m 3 2/m
04.DH.15 Fluornatromicrolite! (Na,Ca,Bi)2Ta2O6F F d3m 4/m 3 2/m
04.DH.15 Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Yttropyrochlore-(Y) (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 F d3m 2/m 3
04.DH.15 Elsmoreite! WO3•0.5(H2O) F d3m 4/m 3 2/m
Other Strontiopyrochlore Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.73,p930,1988) OPTIC PROP.(Am.Min.,Vol.73,p930,1988)
Help on See Also: See Also: Links to other databases for Strontiopyrochlore :1 - Am. Min. Crystal Structure Database2 - Athena3 - EUROmin Project4 - Ecole des Mines de Paris5 - GeoScienceWorld6 - Google Images7 - Google Scholar8 - MinDAT9 - Mineralienatlas (Deutsch)10 - Online Mineral Museum11 - QUT Mineral Atlas12 - Ruff.Info Search for Strontiopyrochlore using: [AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]Visit our Advertisers for Strontiopyrochlore : A Bijoux Google Search for Strontiopyrochlore Adam's Minerals Google Search for Strontiopyrochlore Cape Minerals Google Search for Strontiopyrochlore Dakota Matrix Minerals Google Search for Strontiopyrochlore Excalibur Mineral Corp. Google Search for Strontiopyrochlore Exceptional Minerals Google Search for Strontiopyrochlore John Betts Fine Minerals Search for Strontiopyrochlore McDougall Minerals Google Search for Strontiopyrochlore Mineral News Website Link Rock and Mineral Shows Google Search for Strontiopyrochlore Weinrich Minerals, Inc. Google Search for Strontiopyrochlore Ask about Strontiopyrochlore here : Ask-A-Mineralogist from the Mineralogical Society of America Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol Print or Cut-and-Paste your Strontiopyrochlore Specimen Label here : Strontiopyrochlore Sr2Nb2(O,OH)7 Dana No: 08.02.01.08 Strunz No: 04.DH.15 Locality: Notes: