Yttrobetafite-(Y)  Mineral Data

Yttrobetafite-(Y) Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About

Advertisment
Adamsminerals.com- Online mineral store front for mineral collectors
For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an
Exceptional Minerals features excellent, high quality mineral specimens for sale. We also have a weekly Best Offer Mineral Auction.
Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.

General Yttrobetafite-(Y) Information

Help on Chemical  Formula: Chemical Formula: (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH)
Help on Composition: Composition: Molecular Weight = 437.15 gm
   Calcium    5.50 %  Ca    7.70 % CaO
   Cerium     9.62 %  Ce   11.26 % Ce2O3
   Yttrium    8.14 %  Y    10.33 % Y2O3
   Thorium    5.31 %  Th    6.04 % ThO2
   Uranium    5.45 %  U     6.18 % UO2
   Tantalum   0.83 %  Ta    1.01 % Ta2O5
   Titanium  13.14 %  Ti   21.93 % TiO2
   Niobium   12.75 %  Nb   18.24 % Nb2O5
   Iron       5.11 %  Fe    4.93 % FeO /  1.83 % Fe2O3
   Hydrogen   0.16 %  H     1.44 % H2O
   Lead       9.48 %  Pb   10.21 % PbO
   Oxygen    24.52 %  O
            ______        ______ 
            100.00 %      101.10 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.6Y0.4Ce0.3Fe2+0.3Pb0.2Th0.1U0.1Ti1.2Nb0.6Ta0.02Fe3+0.1O6(OH)0.7
Help on Environment: Environment: Replacement bodies in a quartz-plagioclase-microcline pegmatite and a constituent of lunar soils and breccias.
Help on IMA Status: IMA Status: Approved IMA 1962
Help on Locality: Locality: Alakurtti, northwestern Karelia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the YTTRium-dominent betafite member of the pyrochlore group.
Help on Name Pronunciation: Name Pronunciation: Yttrobetafite-(Y) + Pronunciation Say YTTROBETAFITE-(Y)
Help on Synonym: Synonym: ICSD 24206
  PDF 42-413
 

Yttrobetafite-(Y) Image

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

Yttrobetafite-(Y)

Comments: Fragment of the large grain of compact mustard-yellow yttrobetafite-(Y) from the type locality. Associated minerals are black biotite and redish-brown veinlets of gummite.
Location: Alakurtti pegmatite, Northern Karelia, Murmanskaja Oblast', Northern Region, Russia. Scale: Specimen size is 4.5x2.8x1.4 cm.
© Pavel M. Kartashov

Yttrobetafite-(Y) Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.35, Z = 8; V = 1,108.72 Den(Calc)= 5.24
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.694(1), 3.258(0.8), 2.985(0.7),1.18(0.6), 2.501(0.6), 1.104(0.3), 1.631(0.3),
 

Physical Properties of Yttrobetafite-(Y)

Help on Color: Color: Greenish, Gray green, Reddish.
Help on Density: Density: 3.65 - 4.9, Average = 4.27
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 4.5-5.5 - Near Apatite
Help on Luminescence: Luminescence: Radioactive.
Help on Luster: Luster: Greasy (Oily)
 

Optical Properties of Yttrobetafite-(Y)

Help on Optical Data: Optical Data: NCalc= 2.24 - from Gladstone-Dale relationship (KC = 0.2363) where Ncalc=Dcalc*KC+1
NCalc= 2.01 - from Gladstone-Dale relationship (KC = 0.2363) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Yttrobetafite-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.72 gm/cc
note: Specific Gravity of Yttrobetafite-(Y) =5.24 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEYttrobetafite-(Y) = 517.04 barns/electron
U=PEYttrobetafite-(Y) x relectron=2,438.91 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 519,737.20 (Gamma Ray American Petroleum Institute Units)
Concentration of Yttrobetafite-(Y) per GRapi unit =1,924.05 (PPB)

Yttrobetafite-(Y) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 58.52 ± 14.63 grams of pure Yttrobetafite-(Y) .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 5852.3 ±1463.1 grams of pure Yttrobetafite-(Y) .

Estimated Radioactivity from Yttrobetafite-(Y) - strong
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Becquerels
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 7.14 cm 12,124,567 3.28E-04 519,737.20 170.87
100 gm / 3.32 cm 1,212,457 3.28E-05 51,973.72 17.09
10 gm / 1.54 cm 121,246 3.28E-06 5,197.37 1.71
1 gm / 7.14 mm 12,125 3.28E-07 519.74 0.17
0.1 gm / 3.32 mm 1,212 3.28E-08 51.97 0.02
0.01 gm / 1.54 mm 121 3.28E-09 5.20 0.00
0.001 gm / 0.71 mm 12 3.28E-10 0.52 0.00

Weight of pure Yttrobetafite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.24 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
 

Yttrobetafite-(Y) Classification

Help on  Dana Class: Dana Class: 08.02.03.02 (08)Multiple Oxides with Nb, Ta, and Ti
  (08.02)where (A)2 (B2O6) (O,OH,F)
  (08.02.03)Pyrochlore Group (Betafite Subgroup; 2(Ti)>(Ta+Nb)
 
08.02.03.01 Betafite (Ca,U)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
 
08.02.03.02 Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
 
08.02.03.03 Plumbobetafite (Pb,U,Ca)(Ti,Nb)2O6(OH,F) F d3m 4/m 3 2/m
 
08.02.03.04 Stibiobetafite (Sb,Ca)2(Ti,Nb,Ta)2(O,OH)7 F d3m 4/m 3 2/m
 
08.02.03.05 Calciobetafite Ca2(Ti,Nb)2(O,OH)7 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 Yttrobetafite-(Y) Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Yttrobetafite-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Yttrobetafite-(Y) using:

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

Visit our Advertisers for Yttrobetafite-(Y) :

A Bijoux Google Search for Yttrobetafite-(Y)
Adam's Minerals Google Search for Yttrobetafite-(Y)
Cape Minerals Google Search for Yttrobetafite-(Y)
Dakota Matrix Minerals Google Search for Yttrobetafite-(Y)
Excalibur Mineral Corp. Google Search for Yttrobetafite-(Y)
Exceptional Minerals Google Search for Yttrobetafite-(Y)
John Betts Fine Minerals Search for Yttrobetafite-(Y)
McDougall Minerals Google Search for Yttrobetafite-(Y)
Mineral News Website Link
Rock and Mineral Shows Google Search for Yttrobetafite-(Y)
Weinrich Minerals, Inc. Google Search for Yttrobetafite-(Y)

Ask about Yttrobetafite-(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 Yttrobetafite-(Y) Specimen Label here :

Yttrobetafite-(Y)

(Y,U,Ce)2(Ti,Nb,Ta)2O6(OH)
Dana No: 08.02.03.02 Strunz No: 04.DH.15
Locality:

 

Notes: