Mineralogy Database

Ferritungstite Mineral Data

Search Webmineral :
  
Advertisment

General Ferritungstite Information

Help on Chemical  Formula: Chemical Formula: (K,Ca,Na)(W++++++,Fe+++)2(O,OH)6•(H2O)
Help on Composition: Composition: Molecular Weight = 416.40 gm
   Potassium   1.88 %  K     2.26 % K2O
   Sodium      0.11 %  Na    0.15 % Na2O
   Calcium     0.96 %  Ca    1.35 % CaO
   Iron        6.71 %  Fe    8.63 % FeO
   Hydrogen    0.68 %  H     6.06 % H2O
   Tungsten   66.23 %  W    83.52 % WO3
   Oxygen     23.44 %  O
             ______        ______ 
             100.00 %      101.96 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.2Ca0.1Na0.02W1.5Fe2+0.5O4.7(H2O)1.4
Help on Environment: Environment: An alteration coating on and replacing primary tungsten minerals.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1911
Help on Locality: Locality: Germania tungsten mine, Deer Trail district, Fruitland, Stevens County, Washington, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for FERRIc iron and TUNGsten in its composition.
Help on Name Pronunciation: Name Pronunciation: Ferritungstite Say FERRITUNGSTITE
Help on Synonym: Synonym: ICSD 79158
  PDF 11-331
 

Ferritungstite Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image

  Ferritungstite

Comments: Small, yellow crystals of ferritungstite on matrix.
Location: Clara Mine, Oberwolfach, Wolfach Valley, Black Forest, Baden-Württemberg, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Ferritungstite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.352, Z = 8; V = 1,109.36 Den(Calc)= 4.99
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.966(1), 5.94(1), 3.1(0.9),
 

Physical Properties of Ferritungstite

Help on Color: Color: Yellow, Brownish yellow.
Help on Density: Density: 5.02 - 5.2, Average = 5.1
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Octahedral Crystals - Occurs as octahedral shaped crystals.
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light yellow
 

Optical Properties of Ferritungstite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.171 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.199 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2244,KPDmeas= 0.2192,KC= 0.1872
Ncalc = 1.93 - 1.97
Help on Optical Data: Optical Data: Isotropic, n=2.09-2.15.
 

Calculated Properties of Ferritungstite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.46 gm/cc
note: Specific Gravity of Ferritungstite =5.11 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PEFerritungstite = 821.78 barns/electron
U=PEFerritungstite x relectron=3,663.15 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 23.64 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferritungstite per GRapi unit = 4.23 (%)

Estimated Radioactivity from Ferritungstite - barely detectable

 

Ferritungstite Classification

Help on  Dana Class: Dana Class: 04.05.05.01 (04)Simple Oxides
  (04.05)with a cation charge of 6+ (A++++++ O3)
  (04.05.05)Dana Group
 
04.05.05.01 Ferritungstite (K,Ca,Na)(W,Fe)2(O,OH)6•(H2O) F d3m 4/m 3 2/m
 
04.05.05.02 Elsmoreite! WO3•0.5(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 Ferritungstite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Ferritungstite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Ferritungstite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ferritungstite :

Ask about Ferritungstite 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 Espaol

Print or Cut-and-Paste your Ferritungstite Specimen Label here :

Ferritungstite

(K,Ca,Na)(W++++++,Fe+++)2(O,OH)6•(H2O)
Dana No: 04.05.05.01 Strunz No: 04.DH.15
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.