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

General Kukharenkoite-(La) Information

Help on Chemical Formula: Chemical Formula:

Ba2(La,Ce)(CO3)3F

Help on Composition: Composition:

Molecular Weight = 605.99 gm

Potassium 0.26 % K 0.31 % K2O

Barium 39.88 % Ba 44.53 % BaO

Sodium 0.19 % Na 0.26 % Na2O

Strontium 2.02 % Sr 2.39 % SrO

Calcium 0.73 % Ca 1.02 % CaO

Lanthanum 9.63 % La 11.29 % La2O3

Cerium 4.62 % Ce 5.42 % Ce2O3

Praeseodymium 0.70 % Pr 0.82 % Pr2O3

Thorium 8.42 % Th 9.59 % ThO2

Carbon 5.89 % C 21.57 % CO2

Neodymium 0.71 % Nd 0.83 % Nd2O3

Oxygen 23.52 % O

Fluorine 3.42 % F 3.42 % F

- % F -1.44 % -O=F2

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Ba1.76Sr0.14K0.04La0.42Th0.22Ce0.2Ca0.11Na0.05Pr0.03Nd0.03(CO3)2.97F1.09

Help on Environment: Environment:

Late hydrothermal assemblege in cavities in pegmatites. La-dominant analogue of kukharenkoite-(Ce); structure determined.

Help on IMA Status: IMA Status:

Approved IMA 2003 (Dana # Added)

Help on Locality: Locality:

Kirovsky mine, Mount Kukisvumchorr, Khibina massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named as the La dominant analogue of kukharenkoite-Ce).

Help on Name Pronunciation: Name Pronunciation:

Kukharenkoite-(La) + Pronunciation Say KUKHARENKOITE-(LA)

Help on Synonym: Synonym:

IMA2002-019

Kukharenkoite-(La) Image

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Kukharenkoite-(La) Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =2.621:1:1.3054

Help on Cell Dimensions: Cell Dimensions:

a = 13.396, b = 5.111, c = 6.672, Z = 2; beta = 106.63° V = 437.70 Den(Calc)= 4.60

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.27(1)(310,401,202), 4.01(1)(111,201), 1.998(0.8)(421,222,511,2.14(0.8)(221,512,600), 2.54(0.5)(020,112), 1.636(0.2), 2.38(0.2), 1.37(0.2)(910,424,712,71

Click Here for Large Kukharenkoite-(La) Structure Window Crystal Structure:

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Help on Above

| | Krivovichev S V , Armbruster T , Pekov I V , Zapiski Vserossijskogo Mineralogicheskogo Obshchestva , 132N3 (2003) p.65-72, Cation frameworks in structure of natural fluocarbonates of barium and, rare-earth elements: crystal structure of kukharenkoite-(La), Ba2(La,Ce)(CO3)3F | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Kukharenkoite-(La)

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Pale leek green, Colorless, White.

Help on Diaphaneity: Diaphaneity:

Transparent to Translucent

Help on Fracture: Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Help on Habit: Habit:

Aggregates - Made of numerous individual crystals or clusters.

Help on Habit: Habit:

Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Hardness: Hardness:

4 - Fluorite

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Kukharenkoite-(La)

Help on Gladstone-Dale: Gladstone-Dale:

CI calc= 0.051 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1457,KC= 0.1536
Ncalc = 1.71

Help on Optical Data: Optical Data:

Biaxial (-), a=1.581, b=1.715, g=1.715, bire=0.1340, 2V(Calc)=0, 2V(Meas)=5. Dispersion dispersion not observed.

Calculated Properties of Kukharenkoite-(La)

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.03 gm/cc
note: Specific Gravity of Kukharenkoite-(La) =4.60 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Help on Photoelectric: Photoelectric:

PEKukharenkoite-(La) = 467.67 barns/electron
U=PEKukharenkoite-(La) x relectron=1,883.01 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 157,305.67 (Gamma Ray American Petroleum Institute Units)
Concentration of Kukharenkoite-(La) per GRapi unit = 6.36 (PPM)

Kukharenkoite-(La) 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) 193.36 ± 48.34 grams of pure Kukharenkoite-(La) .

Estimated Radioactivity from Kukharenkoite-(La) - strong

SpecimenSizeWeight/Volume(Sphere) * CalculatedActivityBecquerels(Bq) CalculatedActivityCuries (Ci) EstimatedActivityGR(api) EstimatedExposure(mRem**)/hrIf Held in HandFor One Hour
1000 gm / 7.46 cm 3,774,039 1.02E-04 157,305.67 51.72
100 gm / 3.46 cm 377,404 1.02E-05 15,730.57 5.17
10 gm / 1.61 cm 37,740 1.02E-06 1,573.06 0.52
1 gm / 7.46 mm 3,774 1.02E-07 157.31 0.05
0.1 gm / 3.46 mm 377 1.02E-08 15.73 0.01
0.01 gm / 1.61 mm 38 1.02E-09 1.57 0.00
0.001 gm / 0.75 mm 4 1.02E-10 0.16 0.00

Weight of pure Kukharenkoite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.60 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

Kukharenkoite-(La) Classification

Help on Dana Class: Dana Class:

16a.01.08.03 (16a)Carbonates - Hydroxyl or Halogen

(16a.01)in the Bastnasite/Shynchysite/Parasite Groups

(16a.01.08)Dana Group

16a.01.08.01 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m

16a.01.08.02 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m

16a.01.08.03 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m

Help on Strunz Class: Strunz Class:

05.BD.10 05 - CARBONATES (NITRATES)

05.B - Carbonates with additional anions, without H2O

05.BD -With rare-earth elements (REE)

05.BD.10 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m

05.BD.10 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m

05.BD.10 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m

Other Kukharenkoite-(La) Information

Help on References: References:

NAME( CanMin, v 42, p 928) PHYS. PROP.(CanMin, v 42, p 928) OPTIC PROP.(CanMin, v 42, p 928)

Help on See Also: See Also:

Links to other databases for Kukharenkoite-(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 Kukharenkoite-(La) Specimen Label here :

Kukharenkoite-(La)

Ba2(La,Ce)(CO3)3F
Dana No: 16a.01.08.03 Strunz No: 05.BD.10
Locality:

Notes: