IMA2004-014 Mineral Data

IMA2004-014 Mineral Data

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General IMA2004-014 Information

Chemical Formula:

La3Mn++3Cu++(Mn+++,Fe+++,Mn++++)26(Si2O7)6O30

Composition:

Molecular Weight = 3,569.54 gm

Lanthanum 11.67 % La 13.69 % La₂O₃

Manganese 32.63 % Mn 34.50 % Mn₂O₃ / 6.33 % MnO₂

Iron 12.20 % Fe 17.45 % Fe₂O₃

Copper 1.78 % Cu 2.23 % CuO

Silicon 9.44 % Si 20.20 % SiO₂

Oxygen 32.27 % O

______ ______

100.00 % 100.36 % = TOTAL OXIDE

Empirical Formula:

La₃Mn²⁺₃CuMn³⁺_15.6Fe³⁺_7.8Mn⁴⁺_2.6(Si₂O₇)₆O₃₀

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Le Coreux, Ardennes, Belgium Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2004-014 Crystallography

Axial Ratios:

a:c = 1:2.89344

Cell Dimensions:

a = 11.525, c = 33.347, Z = 2; V = 3,835.92 Den(Calc)= 3.09

Crystal System:

Trigonal - PyramidalH-M Symbol (3) Space Group: P 3₁

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

By Intensity(I/I_o): 2.7232(1), 1.6635(0.4), 2.7789(0.4),5.446(0.31), 2.3702(0.29), 1.6887(0.28), 3.1873(0.19), 11.116(0.18),

Calculated Properties of IMA2004-014

Electron Density:

r_electron=2.90 gm/cc
note: r_IMA2004-014=3.09 gm/cc.

Fermion Index

Fermion Index = 0.00725
Boson Index = 0.99275

Photoelectric:

PE_IMA2004-014= 66.96 barns/electron
U=PE_IMA2004-014 x r_electron= 194.40 barns/cc.

Radioactivity:

GRapi = 11,699.21 (Gamma Ray American Petroleum Institute Units)

IMA2004-014 is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

**Estimated Radioactivity from IMA2004-014** - 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 / 8.52 cm	261,503	7.07E-06	11,699.21	3.85
100 gm / 3.95 cm	26,150	7.07E-07	1,169.92	0.38
10 gm / 1.84 cm	2,615	7.07E-08	116.99	0.04
1 gm / 8.52 mm	262	7.07E-09	11.70	0.00
0.1 gm / 3.95 mm	26	7.07E-10	1.17	0.00
0.01 gm / 1.84 mm	3	7.07E-11	0.12	0.00
0.001 gm / 0.85 mm	0	7.07E-12	0.01	0.00

Weight of pure IMA2004-014 in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.09 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 ( 0.58 % Th) From Sum REE Elements (11.67 % REE)

IMA2004-014 Classification

Dana Class:

7.10.4.1 (7)Multiple Oxides

(7.10)Dana Type

(7.10.4)Dana Group

7.10.4.1 IMA2004-014 ! La3Mn3Cu(Mn,Fe,Mn)26(Si2O7)6O30 P 3₁ 3

Strunz Class:

IV/X.00-00 IV - Oxides

IV/X - Unclassified Strunz Oxides

IV/X.00 - Oxide

Other IMA2004-014 Information

See Also:

Links to other databases for IMA2004-014 :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch)

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Print or Cut-and-Paste your IMA2004-014 Specimen Label here :

IMA2004-014

La3Mn++3Cu++(Mn+++,Fe+++,Mn++++)26(Si2O7)6O30
Dana No: 7.10.4.1 Strunz No: IV/X.00-00
Locality:

Notes: