Mineralogy Database

Okanoganite-(Y) Mineral Data

Search Webmineral :
  
Advertisment

General Okanoganite-(Y) Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca)3(Y,Ce)12Si6B2O27F14
Help on Composition: Composition: Molecular Weight = 2,660.88 gm
   Barium            0.05 %  Ba    0.06 % BaO
   Sodium            1.41 %  Na    1.90 % Na2O
   Strontium         0.07 %  Sr    0.08 % SrO
   Lithium           0.01 %  Li    0.02 % Li2O
   Calcium           3.99 %  Ca    5.58 % CaO
   La,Ce,Pr,Nd,Sm,  36.91 %  RE   43.06 % REE2O3
   Yttrium          15.10 %  Y    19.18 % Y2O3
   Thorium           1.66 %  Th    1.89 % ThO2
   Uranium           0.09 %  U     0.11 % UO3
   Titanium          0.34 %  Ti    0.57 % TiO2
   Beryllium         0.00 %  Be    0.01 % BeO
   Iron              1.55 %  Fe    2.22 % Fe2O3
   Silicon           7.08 %  Si   15.15 % SiO2
   Boron             1.19 %  B     3.85 % B2O3
   Phosphorus        0.37 %  P     0.85 % P2O5
   Hydrogen          0.15 %  H     1.35 % H2O
   Oxygen           22.85 %  O
   Fluorine          7.17 %  F     7.17 % F
                      -   %   F    -3.02 % -O=F2    
                   ______        ______ 
                   100.00 %      100.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Y4.52REE6.82Ca2.65Na1.63Th0.19Sr0.02Ba0.01U0.01Fe3+0.74Ti0.19Li0.04Si6.71P0.32B2.94 Be0.01O34.02(OH)3.98F10.04
Help on Environment: Environment: Isolated unaltered miarolitic cavities of an alkaline granite.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Golden Horn Batholith, near Washington Pass, Okanongan County, Washington. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Okanoganite-(Y) + Pronunciation Say OKANOGANITE-(Y)
 

Okanoganite-(Y) Image

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

  Okanoganite-(Y)

Comments: Cream-colored twinned crystal of okanoganite-(Y) on matrix.
Location: Washington Pass, Okanogan County, Washington, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Okanoganite-(Y) Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.52453
Help on Cell Dimensions: Cell Dimensions: a = 10.7108, c = 27.0398, Z = 3; V = 2,686.45 Den(Calc)= 4.93
Help on Crystal System: Crystal System: Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.97(1), 2.939(0.95), 2.926(0.5),
 

Physical Properties of Okanoganite-(Y)

Help on Cleavage: Cleavage: None
Help on Color: Color: Light brown, Light pink, White, Yellow.
Help on Density: Density: 4.35
Help on Habit: Habit: Pseudo Tetragonal - Crystals show a tetragonal shape.
Help on Habit: Habit: Twinning Common - Crystals are usually twinned.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: white
 

Optical Properties of Okanoganite-(Y)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.089 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1514,KPDmeas= 0.1716,KC= 0.1661
Ncalc = 1.72 - 1.82
Help on Optical Data: Optical Data: Uniaxial (-), e=1.74, w=1.753, bire=0.0130.
 

Calculated Properties of Okanoganite-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.98 gm/cc
note: Specific Gravity of Okanoganite-(Y) =4.35 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PEOkanoganite-(Y) = 289.82 barns/electron
U=PEOkanoganite-(Y) x relectron=1,154.09 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 39,466.95 (Gamma Ray American Petroleum Institute Units)
Concentration of Okanoganite-(Y) per GRapi unit = 25.34 (PPM)

Okanoganite-(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) 770.69 ±192.67 grams of pure Okanoganite-(Y) .

Estimated Radioactivity from Okanoganite-(Y) - weak
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Bequerols
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 7.60 cm 905,369 2.45E-05 39,466.95 12.98
100 gm / 3.53 cm 90,537 2.45E-06 3,946.69 1.30
10 gm / 1.64 cm 9,054 2.45E-07 394.67 0.13
1 gm / 7.60 mm 905 2.45E-08 39.47 0.01
0.1 gm / 3.53 mm 91 2.45E-09 3.95 0.00
0.01 gm / 1.64 mm 9 2.45E-10 0.39 0.00
0.001 gm / 0.76 mm 1 2.45E-11 0.04 0.00

Weight of pure Okanoganite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.35 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
 

Okanoganite-(Y) Classification

Help on  Dana Class: Dana Class: 54.02.04.03 (54)Nesosilicate Borosilicates and Some Beryllosilicates
  (54.02)with B in [4] coordination
  (54.02.04)Howlite and related species
 
54.02.04.01 Garrelsite-VIII Ba3NaSi2B7O16(OH)4 C 2/c 2/m
 
54.02.04.02 Jadarite! LiNaB3SiO7(OH) P 21/n 2/m
 
54.02.04.03 Okanoganite-(Y) (Na,Ca)3(Y,Ce)12Si6B2O27F14 R 3m 3m
Help on  Strunz Class: Strunz Class: 09.AJ.35 09 - SILICATES (Germanates)
  09.A - Nesosilicates
  09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra,
 
09.AJ.35 Okanoganite-(Y) (Na,Ca)3(Y,Ce)12Si6B2O27F14 R 3m 3m
 
09.AJ.35 Vicanite-(Ce) (Ca,Ce,La,Th)15As(As0.5,Na0.5)FeSi6B4O40F7 R 3m 3m
 
09.AJ.35 Hundholmenite-(Y)! (Y,REE,Ca,Na)15(Al,Fe)CaxAs1-x(Si,As)Si6B3(O,F)48 R 3m 3m
 
09.AJ.35 Proshchenkoite-(Y)! (Y,REE,Ca,Na,Mn)15FeCa(P,Si)Si6B3(O,F)48 R 3m 3m
 

Other Okanoganite-(Y) Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990, AmMin 89:1540) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Okanoganite-(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 Okanoganite-(Y) using:

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

Visit our Advertisers for Okanoganite-(Y) :

Ask about Okanoganite-(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 Espaņol

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

Okanoganite-(Y)

(Na,Ca)3(Y,Ce)12Si6B2O27F14
Dana No: 54.02.04.03 Strunz No: 09.AJ.35
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.