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Ferronordite-(La) Mineral Data

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General Ferronordite-(La) Information

Help on Chemical  Formula: Chemical Formula: Na3Sr(La,Ce)FeSi6O17
Help on Composition: Composition: Molecular Weight = 800.84 gm
   Barium          0.34 %  Ba    0.38 % BaO
   Sodium          8.41 %  Na   11.34 % Na2O
   Strontium      10.83 %  Sr   12.81 % SrO
   Calcium         0.40 %  Ca    0.56 % CaO
   Lanthanum       9.71 %  La   11.39 % La2O3
   Cerium          7.00 %  Ce    8.20 % Ce2O3
   Praeseodymium   0.88 %  Pr    1.03 % Pr2O3
   Magnesium       0.18 %  Mg    0.30 % MgO
   Manganese       1.92 %  Mn    2.48 % MnO
   Aluminum        0.07 %  Al    0.13 % Al2O3
   Zinc            1.88 %  Zn    2.34 % ZnO
   Iron            2.93 %  Fe    3.77 % FeO
   Silicon        20.76 %  Si   44.42 % SiO2
   Neodymium       0.72 %  Nd    0.84 % Nd2O3
   Oxygen         33.96 %  O
                 ______        ______ 
                 100.00 %       99.98 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2.93Ca0.08Sr0.99Ba0.02La0.56Ce0.4Pr0.05Nd0.04Fe2+0.42Mn2+0.28Zn0.23Mg0.06Si5.92Al0.02O17
Help on Environment: Environment: Hyperagpaitic pegmatites. Nordite group
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Mt Bol'shoy Punkaruaiv Mountain, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: La dominant analog of ferronordite-(Ce).
Help on Name Pronunciation: Name Pronunciation: Ferronordite-(La) + Pronunciation Say FERRONORDITE-(LA)
Help on Synonym: Synonym: IMA2000-015
 

Ferronordite-(La) Image

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  Ferronordite-(La)   Ferronordite-(Ce)

Comments: Large complex rosette of ferronordite-(La) in center and ferronordite-(Ce) on terminations of platy crystals. Earthy yellowish rhabdophane is Ce dominant.
Location: Bolshoi Punkaruaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: FOV is 12x10 mm.
© Pavel M. Kartashov

Ferronordite-(La) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.7817:1:3.8258
Help on Cell Dimensions: Cell Dimensions: a = 14.44, b = 5.191, c = 19.86, Z = 4; V = 1,488.67 Den(Calc)= 3.57
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pcca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.21(1)(210), 2.873(0.99)(314), 2.964(0.88)(410),3.323(0.82)(312), 2.595(0.58)(020), 2.442(0.44), 7.2(0.4),
 

Physical Properties of Ferronordite-(La)

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Colorless, Pale brownish white.
Help on Density: Density: 3.54
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white
 

Optical Properties of Ferronordite-(La)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1779,KPDmeas= 0.1794,KC= 0.182
Ncalc = 1.64 - 1.65
Help on Optical Data: Optical Data: Biaxial (-), a=1.624, b=1.637, g=1.644, bire=0.0200, 2V(Calc)=72, 2V(Meas)=60. Dispersion weak, r > v.
 

Calculated Properties of Ferronordite-(La)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.34 gm/cc
note: Specific Gravity of Ferronordite-(La) =3.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEFerronordite-(La) = 104.13 barns/electron
U=PEFerronordite-(La) x relectron= 347.71 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 18,425.43 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferronordite-(La) per GRapi unit = 54.27 (PPM)

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

Estimated Radioactivity from Ferronordite-(La) - 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 / 8.14 cm 410,186 1.11E-05 18,425.43 6.06
100 gm / 3.78 cm 41,019 1.11E-06 1,842.54 0.61
10 gm / 1.75 cm 4,102 1.11E-07 184.25 0.06
1 gm / 8.14 mm 410 1.11E-08 18.43 0.01
0.1 gm / 3.78 mm 41 1.11E-09 1.84 0.00
0.01 gm / 1.75 mm 4 1.11E-10 0.18 0.00
0.001 gm / 0.81 mm 0 1.11E-11 0.02 0.00

Weight of pure Ferronordite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.54 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
Estimated Thorium Activity ( 0.92 % Th) From Sum REE Elements (18.31 % REE)
 

Ferronordite-(La) Classification

Help on  Dana Class: Dana Class: 72.05.02.07 (72)Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
  (72.05)with corrugated and complex layers
  (72.05.02)Leucospenite and related species
 
72.05.02.01 Leucosphenite Na4BaTi2O2[B2Si10O28] C 2/m 2/m
 
72.05.02.02 Nordite-(Ce) (Ce,La,Ca)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 Pcca 2/m 2/m 2/m
 
72.05.02.03 Nordite-(La) (Na,Mn)3(Sr,Ca)(La,Ce)(Zn,Mg)Si6O17 Pcca 2/m 2/m 2/m
 
72.05.02.04 Semenovite (Na,Ca)9(Ce,La)2(Fe,Mn)(Si,Be)20(O,OH,F)48 Pmmn 2/m 2/m 2/m
 
72.05.02.05 Ferronordite-(Ce)! Na3SrCeFeSi6O17 Pcca 2/m 2/m 2/m
 
72.05.02.06 Manganonordite-(Ce)! Na3SrCeMnSi6O17 Pcca 2/m 2/m 2/m
 
72.05.02.07 Ferronordite-(La)! Na3Sr(La,Ce)FeSi6O17 Pcca 2/m 2/m 2/m
 
72.05.02.08 Bussyite-(Ce)! (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4 C 2/c 2/m
Help on  Strunz Class: Strunz Class: 09.DO.15 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DO -Inosilicates with 7-, 8-, 10-, 12- and 14-periodic chains
 
09.DO.15 Manganonordite-(Ce)! Na3SrCeMnSi6O17 Pcca 2/m 2/m 2/m
 
09.DO.15 Ferronordite-(Ce)! Na3SrCeFeSi6O17 Pcca 2/m 2/m 2/m
 
09.DO.15 Nordite-(Ce) (Ce,La,Ca)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17 Pcca 2/m 2/m 2/m
 
09.DO.15 Nordite-(La) (Na,Mn)3(Sr,Ca)(La,Ce)(Zn,Mg)Si6O17 Pcca 2/m 2/m 2/m
 
09.DO.15 Ferronordite-(La)! Na3Sr(La,Ce)FeSi6O17 Pcca 2/m 2/m 2/m
 

Other Ferronordite-(La) Information

Help on References: References: NAME( AmMin, 87:1510) PHYS. PROP.(AmMin, 87:1510) OPTIC PROP.(AmMin, 87:1510)
Help on See Also: See Also: Links to other databases for Ferronordite-(La) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Ferronordite-(La) Specimen Label here :

Ferronordite-(La)

Na3Sr(La,Ce)FeSi6O17
Dana No: 72.05.02.07 Strunz No: 09.DO.15
Locality:

 

Notes:

 

 
   
 


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