IMA2009-015 Mineral Data

General IMA2009-015 Information

Chemical Formula:

NaSrCeF6

Composition:

Molecular Weight = 364.72 gm

Sodium 6.30 % Na 8.50 % Na₂O

Strontium 24.02 % Sr 28.41 % SrO

Cerium 38.42 % Ce 45.00 % Ce₂O₃

Fluorine 31.25 % F 31.25 % F

- % F -13.16 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaSrCeF₆

Environment:

Sr-Ce analogue of gagarinite-(Y)

IMA Status:

Proposed IMA 2009

Locality:

Mount Koashva, Khibiny Massif, Kola Peninsula, Russia Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

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IMA2009-015 Crystallography

Axial Ratios:

a:c = 1:0.61237

Cell Dimensions:

a = 6.207, c = 3.801, Z = 1; V = 126.82 Den(Calc)= 4.78

Crystal System:

Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 6₃/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.12(1), 1.796(0.9), 1.173(0.7),2.198(0.7), 5.416(0.4), 1.304(0.3), 1.387(0.3), 1.554(0.3),

Calculated Properties of IMA2009-015

Electron Density:

Bulk Density (Electron Density)=4.22 gm/cc
note: Specific Gravity of IMA2009-015 =4.78 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_IMA2009-015= 229.90 barns/electron
U=PE_IMA2009-015 x r_electron= 970.20 barns/cc.

Radioactivity:

GRapi = 36,179.40 (Gamma Ray American Petroleum Institute Units)
Concentration of IMA2009-015 per GRapi unit = 27.64 (PPM)

IMA2009-015 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) 840.72 ±210.18 grams of pure IMA2009-015 .

**Estimated Radioactivity from IMA2009-015** - weak
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Becquerels (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.37 cm	860,555	2.33E-05	36,179.40	11.89
100 gm / 3.42 cm	86,056	2.33E-06	3,617.94	1.19
10 gm / 1.59 cm	8,606	2.33E-07	361.79	0.12
1 gm / 7.37 mm	861	2.33E-08	36.18	0.01
0.1 gm / 3.42 mm	86	2.33E-09	3.62	0.00
0.01 gm / 1.59 mm	9	2.33E-10	0.36	0.00
0.001 gm / 0.74 mm	1	2.33E-11	0.04	0.00

Weight of pure IMA2009-015 in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.78 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 ( 1.92 % Th) From Sum REE Elements (38.42 % REE)

IMA2009-015 Classification

Dana Class:

11.05.06.02 (11)Halide Complexes; Alumino-fluorides

(11.05)where (A)m B (X)6

(11.05.06)Dana Group

11.05.06.01 Gagarinite-(Y) NaCaY(F,Cl)6 P 3 3

11.05.06.02 IMA2009-015 NaSrCeF6 P 6₃/m 6/m

Strunz Class:

03.XX.00 03 - Halogenides

03.X - Unclassified Strunz Halogenides

03.XX -Unknown

03.XX.00 Hydrophilite? CaCl2 Pnnm 2/m 2/m 2/m

03.XX.00 Hydromolysite? FeCl3•6(H2O) C 2/m 2/m

03.XX.00 Lorettoite? Pb7O6Cl2 pseudo-TET Ortho

03.XX.00 Yttrocerite* CaF2(Y,Ce)F3 Unk Cubic

03.XX.00 IMA2009-014 SrF2 F m3m 4/m 3 2/m

03.XX.00 IMA2009-015 NaSrCeF6 P 6₃/m 6/m

Other IMA2009-015 Information

See Also:

Links to other databases for IMA2009-015 :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - Mineralienatlas (Deutsch)
7 - Online Mineral Museum
8 - Ruff.Info

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Print or Cut-and-Paste your IMA2009-015 Specimen Label here :

IMA2009-015

NaSrCeF6
Dana No: 11.05.06.02 Strunz No: 03.XX.00
Locality:

Notes: