Mineralogy Database

Isolueshite Mineral Data

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General Isolueshite Information

Help on Chemical  Formula: Chemical Formula: (Na,La,Ca)(Nb,Ti)O3
Help on Composition: Composition: Molecular Weight = 202.42 gm
   Sodium      4.54 %  Na    6.12 % Na2O
   Calcium     3.96 %  Ca    5.54 % CaO
   Lanthanum  27.45 %  La   32.19 % La2O3
   Titanium    5.91 %  Ti    9.87 % TiO2
   Niobium    34.42 %  Nb   49.24 % Nb2O5
   Oxygen     23.71 %  O
             ______        ______ 
             100.00 %      102.96 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.4La0.4Ca0.2Nb0.75Ti0.25O3
Help on Environment: Environment: In a hydrothermally altered pegmatite vein cutting ijolite-urtite. A polymorph of lueshite.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: The Kukisvumchorr apatite deposit, southern part of the Khibina alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name reflects its isometric habit, optical isotropism and compositional similarity to its orthorhombic polymorph, lueshite.
Help on Name Pronunciation: Name Pronunciation: Isolueshite + Pronunciation Say ISOLUESHITE
Help on Synonym: Synonym: ICSD 90040
  IMA1995-024
  PDF 50-1626
 

Isolueshite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 3.911, Z = 1; V = 59.82 Den(Calc)= 5.62
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: P m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.765(1), 1.953(0.53), 3.915(0.35),
Help on Forms: Forms:

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Drag1 - Manipulate Crystal
Drag2 - Resize

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Help on Above

Forms: ( 1 1 0) ( 1 0 0)

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Physical Properties of Isolueshite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brownish black.
Help on Density: Density: 4.72
Help on Diaphaneity: Diaphaneity: Opaque to subtranslucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Adamantine
Help on Streak: Streak: pale yellow
 

Optical Properties of Isolueshite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.052 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.116 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2135,KPDmeas= 0.2542,KC= 0.2417
Ncalc = 2.14 - 2.36
Help on Optical Data: Optical Data: Isotropic, n=2.2.
Help on RL Color: RL Color: Bluish with reddish-brown internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Isolueshite in Air
λ R  ∑ R(λ) 
 460 nm   16.05   
 500 nm   15.50 
 540 nm   15.00 
 580 nm   14.70 
 620 nm   14.45 
 640 nm   14.40 
 660 nm   14.35 
 700 nm   14.35 
Calculated Relative Intensity Colors of Isolueshite in Air
Relative
Intensity
   0%   70% 100% 140% 210% 280% 350% 420% 490% 560% 610%
R                      
 

Calculated Properties of Isolueshite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.26 gm/cc
note: Specific Gravity of Isolueshite =4.72 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0080603376
Boson Index = 0.9919396624
Help on Photoelectric: Photoelectric: PEIsolueshite = 186.08 barns/electron
U=PEIsolueshite x relectron= 793.61 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 26,455.01 (Gamma Ray American Petroleum Institute Units)
Concentration of Isolueshite per GRapi unit = 37.80 (PPM)

Isolueshite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Radioactivity from Isolueshite - 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 / 7.40 cm 614,852 1.66E-05 26,455.01 8.70
100 gm / 3.43 cm 61,485 1.66E-06 2,645.50 0.87
10 gm / 1.59 cm 6,149 1.66E-07 264.55 0.09
1 gm / 7.40 mm 615 1.66E-08 26.46 0.01
0.1 gm / 3.43 mm 61 1.66E-09 2.65 0.00
0.01 gm / 1.59 mm 6 1.66E-10 0.26 0.00
0.001 gm / 0.74 mm 1 1.66E-11 0.03 0.00

Weight of pure Isolueshite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.72 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 ( 1.37 % Th) From Sum REE Elements (27.45 % REE)
 

Isolueshite Classification

Help on  Dana Class: Dana Class: 04.03.03.06 (04)Simple Oxides
  (04.03)with a cation charge of 3+ (A+++2 O3)
  (04.03.03)Perovskite Group
 
04.03.03.01 Perovskite CaTiO3 P nma 2/m 2/m 2/m
 
04.03.03.02 Latrappite (Ca,Na)(Nb,Ti,Fe)O3 Pcmn 2/m 2/m 2/m
 
04.03.03.03 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m
 
04.03.03.04 Lueshite NaNbO3 P 2221 2 2 2
 
04.03.03.05 Tausonite SrTiO3 P m3m 4/m 3 2/m
 
04.03.03.06 Isolueshite! (Na,La,Ca)(Nb,Ti)O3 P m3m 4/m 3 2/m
 
04.03.03.07 Barioperovskite! BaTiO3 Amm2 mm2
 
04.03.03.08 Lakargiite! CaZrO3 P nma 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.CC.35 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.C - Metal:Oxygen = 2:3, 3:5, and Similar
  04.CC -With large and medium-sized cations
 
04.CC.35 Isolueshite! (Na,La,Ca)(Nb,Ti)O3 P m3m 4/m 3 2/m
 
04.CC.35 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m
 
04.CC.35 Macedonite PbTiO3 P 4/mmm 4/m 2/m 2/m
 
04.CC.35 Tausonite SrTiO3 P m3m 4/m 3 2/m
 

Other Isolueshite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Eur. J. Min.,Vol.8,1996) OPTIC PROP.(MinRec, v 29, p 236)
Help on See Also: See Also: Links to other databases for Isolueshite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST

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Print or Cut-and-Paste your Isolueshite Specimen Label here :

Isolueshite

(Na,La,Ca)(Nb,Ti)O3
Dana No: 04.03.03.06 Strunz No: 04.CC.35
Locality:

 

Notes:

 

 
   
 


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