Fergusonite-beta-(Y) Mineral Data

Fergusonite-beta-(Y) Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.


General Fergusonite-beta-(Y) Information

Help on Chemical Formula: Chemical Formula: YNbO4
Help on Composition: Composition: Molecular Weight = 245.81 gm
   Yttrium  36.17 %  Y    45.93 % Y2O3
   Niobium  37.80 %  Nb   54.07 % Nb2O5
   Oxygen   26.04 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: YNbO4
Help on Environment: Environment: Granitic rocks.
Help on IMA Status: IMA Status: Approved IMA 1961
Help on Locality: Locality: Central-eastern Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the crystal symmetry and composition as the Y-dominant member of the fergusonite group.
Help on Name Pronunciation: Name Pronunciation: Fergusonite-beta-(Y) + Pronunciation Say FERGUSONITE-BETA-(Y)
 

Fergusonite-beta-(Y) Image

Click Here for Larger Fergusonite-beta-(Y) Image in a New Browser Window Images:
Click Here for Larger Fergusonite-beta-(Y) Image

Fergusonite-beta-(Y)

Comments: Black crystal of fergusonite-β-(Y) in matrix.
Location: Fukushima City, Fukushima Prefecture, Japan. Scale: Crystal Size 6 mm.
© Nagashima mineral collection

Fergusonite-beta-(Y) Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.4837:1:0.4633
Help on Cell Dimensions: Cell Dimensions: a = 5.292, b = 10.94, c = 5.069, Z = 4; beta = 94.6° V = 292.52 Den(Calc)= 5.58
Help on Crystal System: Crystal System: Monoclinic - SphenoidalH-M Symbol (2) Space Group: I2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.12(1), 2.955(0.95), 1.9(0.75),
Click Here for Large Fergusonite-beta-(Y) Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Weitzel H , Schrocke H , Zeitschrift fur Kristallographie , 152 (1980) p.69-82, Kristallstrukturverfeinerungen von euxenit, Y(Nb0.5Ti0.5)2O6, und M-fergusonit, YNbO4

 

Physical Properties of Fergusonite-beta-(Y)

Help on Color: Color: Yellow.
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Hardness: Hardness: 5.5-6.5 - Knife Blade-Pyrite
Help on Luster: Luster: Vitreous - Greasy
 

Optical Properties of Fergusonite-beta-(Y)

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.096 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2016,KC= 0.223
Ncalc = 2.24
Help on Optical Data: Optical Data: Biaxial (+/-), a=2.06-2.19, b=2.06-2.19, g=2.06-2.19, bire=0.0000, 2V(Calc)=0, 2V(Meas)=0.
 

Calculated Properties of Fergusonite-beta-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.08 gm/cc
note: Specific Gravity of Fergusonite-beta-(Y) =5.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.00012497
Boson Index = 0.99987503
Help on Photoelectric: Photoelectric: PEFergusonite-beta-(Y) = 105.20 barns/electron
U=PEFergusonite-beta-(Y) x rElectron Density= 534.91 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Fergusonite-beta-(Y) is Not Radioactive
 

Fergusonite-beta-(Y) Classification
Help on Dana Class: Dana Class: 08.01.02.01 (08)Multiple Oxides with Nb, Ta, and Ti
  (08.01)where A BO4
  (08.01.02)Fergusonite-beta Grup (Monoclinic)
 
08.01.02.01 Fergusonite-beta-(Y) YNbO4 I2 2
 
08.01.02.02 Fergusonite-beta-(Ce) (Ce,La,Nd)NbO4 I2 2
 
08.01.02.03 Fergusonite-beta-(Nd) (Nd,Ce)NbO4 I2 2
Help on Strunz Class: Strunz Class: 04.DG.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DG -With large (± medium-sized) cations; chains of edge-sharing octahedra
 
04.DG.10 Fergusonite-beta-(Nd) (Nd,Ce)NbO4 I2 2
 
04.DG.10 Fergusonite-beta-(Y) YNbO4 I2 2
 
04.DG.10 Fergusonite-beta-(Ce) (Ce,La,Nd)NbO4 I2 2
 
04.DG.10 Yttrotantalite-(Y) (Y,U,Fe)(Ta,Nb)O4 I2/a 2/m
 

Other Fergusonite-beta-(Y) Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Fergusonite-beta-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

Search for Fergusonite-beta-(Y) using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Fergusonite-beta-(Y) :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Fergusonite-beta-(Y) Mineral Data :

Ask about Fergusonite-beta-(Y) 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 Español

Print or Cut-and-Paste your Fergusonite-beta-(Y) Specimen Label here :

Fergusonite-beta-(Y)

YNbO4
Dana No: 08.01.02.01 Strunz No: 04.DG.10
Locality:

 

Notes: