Ferronordite-(La) Mineral Data (original) (raw)

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

Click Here for Larger Ferronordite-(La) Image in a New Browser Window Images:

Click Here for Larger Ferronordite-(La) Image 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 - DipyramidalH-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

SpecimenSizeWeight/Volume(Sphere) * CalculatedActivityBecquerels(Bq) CalculatedActivityCuries (Ci) EstimatedActivityGR(api) EstimatedExposure(mRem**)/hrIf Held in HandFor 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: