Isolueshite Mineral Data (original) (raw)

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

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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 - HexoctahedralH-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),

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| | Forms:( 1 1 0) ( 1 0 0) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | -------------------------------------------------------------------------------------------------------------------------------------- |

Click Here for Large Isolueshite Structure Window Crystal Structure:

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| | Krivovichev S V , Chakhmouradian A R , Mitchell R H , Filatov S K , Chukanov N V , European Journal of Mineralogy , 12 (2000) p.597-607, Crystal structure of isolueshite and its synthetic compositional analogue, Sample: isolueshite View Additional jPOWD Structure files for Isolueshite [1] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

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

RelativeIntensity 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

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